diff --git a/src/compiler/commandLineParser.ts b/src/compiler/commandLineParser.ts
index d286eaf3118a0..35ef50db8adcf 100644
--- a/src/compiler/commandLineParser.ts
+++ b/src/compiler/commandLineParser.ts
@@ -1115,7 +1115,8 @@ namespace ts {
         target: ScriptTarget.ES5,
         strict: true,
         esModuleInterop: true,
-        forceConsistentCasingInFileNames: true
+        forceConsistentCasingInFileNames: true,
+        skipLibCheck: true
     };
 
     /* @internal */
diff --git a/tests/baselines/reference/tsConfig/Default initialized TSConfig/tsconfig.json b/tests/baselines/reference/tsConfig/Default initialized TSConfig/tsconfig.json
index d4decd1da4af6..c9f603c2199ec 100644
--- a/tests/baselines/reference/tsConfig/Default initialized TSConfig/tsconfig.json	
+++ b/tests/baselines/reference/tsConfig/Default initialized TSConfig/tsconfig.json	
@@ -63,6 +63,7 @@
     // "emitDecoratorMetadata": true,         /* Enables experimental support for emitting type metadata for decorators. */
 
     /* Advanced Options */
+    "skipLibCheck": true,                     /* Skip type checking of declaration files. */
     "forceConsistentCasingInFileNames": true  /* Disallow inconsistently-cased references to the same file. */
   }
 }
diff --git a/tests/baselines/reference/tsConfig/Initialized TSConfig with boolean value compiler options/tsconfig.json b/tests/baselines/reference/tsConfig/Initialized TSConfig with boolean value compiler options/tsconfig.json
index 1ce0b81d19289..f2ff8ef9f0053 100644
--- a/tests/baselines/reference/tsConfig/Initialized TSConfig with boolean value compiler options/tsconfig.json	
+++ b/tests/baselines/reference/tsConfig/Initialized TSConfig with boolean value compiler options/tsconfig.json	
@@ -63,6 +63,7 @@
     // "emitDecoratorMetadata": true,         /* Enables experimental support for emitting type metadata for decorators. */
 
     /* Advanced Options */
+    "skipLibCheck": true,                     /* Skip type checking of declaration files. */
     "forceConsistentCasingInFileNames": true  /* Disallow inconsistently-cased references to the same file. */
   }
 }
diff --git a/tests/baselines/reference/tsConfig/Initialized TSConfig with enum value compiler options/tsconfig.json b/tests/baselines/reference/tsConfig/Initialized TSConfig with enum value compiler options/tsconfig.json
index 0569b5469962a..286219dae6e96 100644
--- a/tests/baselines/reference/tsConfig/Initialized TSConfig with enum value compiler options/tsconfig.json	
+++ b/tests/baselines/reference/tsConfig/Initialized TSConfig with enum value compiler options/tsconfig.json	
@@ -63,6 +63,7 @@
     // "emitDecoratorMetadata": true,         /* Enables experimental support for emitting type metadata for decorators. */
 
     /* Advanced Options */
+    "skipLibCheck": true,                     /* Skip type checking of declaration files. */
     "forceConsistentCasingInFileNames": true  /* Disallow inconsistently-cased references to the same file. */
   }
 }
diff --git a/tests/baselines/reference/tsConfig/Initialized TSConfig with files options/tsconfig.json b/tests/baselines/reference/tsConfig/Initialized TSConfig with files options/tsconfig.json
index d4bd5c32c52cc..0ec33da9842fc 100644
--- a/tests/baselines/reference/tsConfig/Initialized TSConfig with files options/tsconfig.json	
+++ b/tests/baselines/reference/tsConfig/Initialized TSConfig with files options/tsconfig.json	
@@ -63,6 +63,7 @@
     // "emitDecoratorMetadata": true,         /* Enables experimental support for emitting type metadata for decorators. */
 
     /* Advanced Options */
+    "skipLibCheck": true,                     /* Skip type checking of declaration files. */
     "forceConsistentCasingInFileNames": true  /* Disallow inconsistently-cased references to the same file. */
   },
   "files": [
diff --git a/tests/baselines/reference/tsConfig/Initialized TSConfig with incorrect compiler option value/tsconfig.json b/tests/baselines/reference/tsConfig/Initialized TSConfig with incorrect compiler option value/tsconfig.json
index 94b36f0dcf31b..ea8f60ca0cf8c 100644
--- a/tests/baselines/reference/tsConfig/Initialized TSConfig with incorrect compiler option value/tsconfig.json	
+++ b/tests/baselines/reference/tsConfig/Initialized TSConfig with incorrect compiler option value/tsconfig.json	
@@ -63,6 +63,7 @@
     // "emitDecoratorMetadata": true,         /* Enables experimental support for emitting type metadata for decorators. */
 
     /* Advanced Options */
+    "skipLibCheck": true,                     /* Skip type checking of declaration files. */
     "forceConsistentCasingInFileNames": true  /* Disallow inconsistently-cased references to the same file. */
   }
 }
diff --git a/tests/baselines/reference/tsConfig/Initialized TSConfig with incorrect compiler option/tsconfig.json b/tests/baselines/reference/tsConfig/Initialized TSConfig with incorrect compiler option/tsconfig.json
index d4decd1da4af6..c9f603c2199ec 100644
--- a/tests/baselines/reference/tsConfig/Initialized TSConfig with incorrect compiler option/tsconfig.json	
+++ b/tests/baselines/reference/tsConfig/Initialized TSConfig with incorrect compiler option/tsconfig.json	
@@ -63,6 +63,7 @@
     // "emitDecoratorMetadata": true,         /* Enables experimental support for emitting type metadata for decorators. */
 
     /* Advanced Options */
+    "skipLibCheck": true,                     /* Skip type checking of declaration files. */
     "forceConsistentCasingInFileNames": true  /* Disallow inconsistently-cased references to the same file. */
   }
 }
diff --git a/tests/baselines/reference/tsConfig/Initialized TSConfig with list compiler options with enum value/tsconfig.json b/tests/baselines/reference/tsConfig/Initialized TSConfig with list compiler options with enum value/tsconfig.json
index 814e985a98202..7add8d543f8c8 100644
--- a/tests/baselines/reference/tsConfig/Initialized TSConfig with list compiler options with enum value/tsconfig.json	
+++ b/tests/baselines/reference/tsConfig/Initialized TSConfig with list compiler options with enum value/tsconfig.json	
@@ -63,6 +63,7 @@
     // "emitDecoratorMetadata": true,         /* Enables experimental support for emitting type metadata for decorators. */
 
     /* Advanced Options */
+    "skipLibCheck": true,                     /* Skip type checking of declaration files. */
     "forceConsistentCasingInFileNames": true  /* Disallow inconsistently-cased references to the same file. */
   }
 }
diff --git a/tests/baselines/reference/tsConfig/Initialized TSConfig with list compiler options/tsconfig.json b/tests/baselines/reference/tsConfig/Initialized TSConfig with list compiler options/tsconfig.json
index 6ef0e3a101bac..29a0374fa2688 100644
--- a/tests/baselines/reference/tsConfig/Initialized TSConfig with list compiler options/tsconfig.json	
+++ b/tests/baselines/reference/tsConfig/Initialized TSConfig with list compiler options/tsconfig.json	
@@ -63,6 +63,7 @@
     // "emitDecoratorMetadata": true,         /* Enables experimental support for emitting type metadata for decorators. */
 
     /* Advanced Options */
+    "skipLibCheck": true,                     /* Skip type checking of declaration files. */
     "forceConsistentCasingInFileNames": true  /* Disallow inconsistently-cased references to the same file. */
   }
 }
diff --git a/tests/baselines/reference/tscWatch/programUpdates/should-not-trigger-recompilation-because-of-program-emit/declarationDir-is-specified.js b/tests/baselines/reference/tscWatch/programUpdates/should-not-trigger-recompilation-because-of-program-emit/declarationDir-is-specified.js
index 0b0bdfd343a50..3ba97be0f14e7 100644
--- a/tests/baselines/reference/tscWatch/programUpdates/should-not-trigger-recompilation-because-of-program-emit/declarationDir-is-specified.js
+++ b/tests/baselines/reference/tscWatch/programUpdates/should-not-trigger-recompilation-because-of-program-emit/declarationDir-is-specified.js
@@ -85,6 +85,7 @@ interface Array<T> { length: number; [n: number]: T; }
 
     /* Advanced Options */
     "declarationDir": "decls",                /* Output directory for generated declaration files. */
+    "skipLibCheck": true,                     /* Skip type checking of declaration files. */
     "forceConsistentCasingInFileNames": true  /* Disallow inconsistently-cased references to the same file. */
   }
 }
@@ -127,7 +128,7 @@ Output::
 
 
 Program root files: ["/user/username/projects/myproject/file1.ts","/user/username/projects/myproject/src/file2.ts"]
-Program options: {"target":1,"module":2,"declaration":true,"strict":true,"esModuleInterop":true,"declarationDir":"/user/username/projects/myproject/decls","forceConsistentCasingInFileNames":true,"watch":true,"project":"/user/username/projects/myproject/tsconfig.json","configFilePath":"/user/username/projects/myproject/tsconfig.json"}
+Program options: {"target":1,"module":2,"declaration":true,"strict":true,"esModuleInterop":true,"declarationDir":"/user/username/projects/myproject/decls","skipLibCheck":true,"forceConsistentCasingInFileNames":true,"watch":true,"project":"/user/username/projects/myproject/tsconfig.json","configFilePath":"/user/username/projects/myproject/tsconfig.json"}
 Program files::
 /a/lib/lib.d.ts
 /user/username/projects/myproject/file1.ts
diff --git a/tests/baselines/reference/tscWatch/programUpdates/should-not-trigger-recompilation-because-of-program-emit/when-outDir-and-declarationDir-is-specified.js b/tests/baselines/reference/tscWatch/programUpdates/should-not-trigger-recompilation-because-of-program-emit/when-outDir-and-declarationDir-is-specified.js
index 93a9754adb558..637cf598966a8 100644
--- a/tests/baselines/reference/tscWatch/programUpdates/should-not-trigger-recompilation-because-of-program-emit/when-outDir-and-declarationDir-is-specified.js
+++ b/tests/baselines/reference/tscWatch/programUpdates/should-not-trigger-recompilation-because-of-program-emit/when-outDir-and-declarationDir-is-specified.js
@@ -85,6 +85,7 @@ interface Array<T> { length: number; [n: number]: T; }
 
     /* Advanced Options */
     "declarationDir": "decls",                /* Output directory for generated declaration files. */
+    "skipLibCheck": true,                     /* Skip type checking of declaration files. */
     "forceConsistentCasingInFileNames": true  /* Disallow inconsistently-cased references to the same file. */
   }
 }
@@ -127,7 +128,7 @@ Output::
 
 
 Program root files: ["/user/username/projects/myproject/file1.ts","/user/username/projects/myproject/src/file2.ts"]
-Program options: {"target":1,"module":2,"declaration":true,"outDir":"/user/username/projects/myproject/build","strict":true,"esModuleInterop":true,"declarationDir":"/user/username/projects/myproject/decls","forceConsistentCasingInFileNames":true,"watch":true,"project":"/user/username/projects/myproject/tsconfig.json","configFilePath":"/user/username/projects/myproject/tsconfig.json"}
+Program options: {"target":1,"module":2,"declaration":true,"outDir":"/user/username/projects/myproject/build","strict":true,"esModuleInterop":true,"declarationDir":"/user/username/projects/myproject/decls","skipLibCheck":true,"forceConsistentCasingInFileNames":true,"watch":true,"project":"/user/username/projects/myproject/tsconfig.json","configFilePath":"/user/username/projects/myproject/tsconfig.json"}
 Program files::
 /a/lib/lib.d.ts
 /user/username/projects/myproject/file1.ts
diff --git a/tests/baselines/reference/tscWatch/programUpdates/should-not-trigger-recompilation-because-of-program-emit/when-outDir-is-specified.js b/tests/baselines/reference/tscWatch/programUpdates/should-not-trigger-recompilation-because-of-program-emit/when-outDir-is-specified.js
index 0c8fcf7465321..0e126eb1e1b8a 100644
--- a/tests/baselines/reference/tscWatch/programUpdates/should-not-trigger-recompilation-because-of-program-emit/when-outDir-is-specified.js
+++ b/tests/baselines/reference/tscWatch/programUpdates/should-not-trigger-recompilation-because-of-program-emit/when-outDir-is-specified.js
@@ -84,6 +84,7 @@ interface Array<T> { length: number; [n: number]: T; }
     // "emitDecoratorMetadata": true,         /* Enables experimental support for emitting type metadata for decorators. */
 
     /* Advanced Options */
+    "skipLibCheck": true,                     /* Skip type checking of declaration files. */
     "forceConsistentCasingInFileNames": true  /* Disallow inconsistently-cased references to the same file. */
   }
 }
@@ -118,7 +119,7 @@ Output::
 
 
 Program root files: ["/user/username/projects/myproject/file1.ts","/user/username/projects/myproject/src/file2.ts"]
-Program options: {"target":1,"module":2,"outDir":"/user/username/projects/myproject/build","strict":true,"esModuleInterop":true,"forceConsistentCasingInFileNames":true,"watch":true,"project":"/user/username/projects/myproject/tsconfig.json","configFilePath":"/user/username/projects/myproject/tsconfig.json"}
+Program options: {"target":1,"module":2,"outDir":"/user/username/projects/myproject/build","strict":true,"esModuleInterop":true,"skipLibCheck":true,"forceConsistentCasingInFileNames":true,"watch":true,"project":"/user/username/projects/myproject/tsconfig.json","configFilePath":"/user/username/projects/myproject/tsconfig.json"}
 Program files::
 /a/lib/lib.d.ts
 /user/username/projects/myproject/file1.ts
diff --git a/tests/baselines/reference/tscWatch/programUpdates/should-not-trigger-recompilation-because-of-program-emit/with-outFile.js b/tests/baselines/reference/tscWatch/programUpdates/should-not-trigger-recompilation-because-of-program-emit/with-outFile.js
index 8ef1989cdb0a1..a0a613282c1cb 100644
--- a/tests/baselines/reference/tscWatch/programUpdates/should-not-trigger-recompilation-because-of-program-emit/with-outFile.js
+++ b/tests/baselines/reference/tscWatch/programUpdates/should-not-trigger-recompilation-because-of-program-emit/with-outFile.js
@@ -84,6 +84,7 @@ interface Array<T> { length: number; [n: number]: T; }
     // "emitDecoratorMetadata": true,         /* Enables experimental support for emitting type metadata for decorators. */
 
     /* Advanced Options */
+    "skipLibCheck": true,                     /* Skip type checking of declaration files. */
     "forceConsistentCasingInFileNames": true  /* Disallow inconsistently-cased references to the same file. */
   }
 }
@@ -115,7 +116,7 @@ Output::
 
 
 Program root files: ["/user/username/projects/myproject/file1.ts","/user/username/projects/myproject/src/file2.ts"]
-Program options: {"target":1,"module":2,"outFile":"/user/username/projects/myproject/build/outFile.js","strict":true,"esModuleInterop":true,"forceConsistentCasingInFileNames":true,"watch":true,"project":"/user/username/projects/myproject/tsconfig.json","configFilePath":"/user/username/projects/myproject/tsconfig.json"}
+Program options: {"target":1,"module":2,"outFile":"/user/username/projects/myproject/build/outFile.js","strict":true,"esModuleInterop":true,"skipLibCheck":true,"forceConsistentCasingInFileNames":true,"watch":true,"project":"/user/username/projects/myproject/tsconfig.json","configFilePath":"/user/username/projects/myproject/tsconfig.json"}
 Program files::
 /a/lib/lib.d.ts
 /user/username/projects/myproject/file1.ts
diff --git a/tests/baselines/reference/tscWatch/programUpdates/should-not-trigger-recompilation-because-of-program-emit/without-outDir-or-outFile-is-specified.js b/tests/baselines/reference/tscWatch/programUpdates/should-not-trigger-recompilation-because-of-program-emit/without-outDir-or-outFile-is-specified.js
index fbe282741c88d..7eec5119a937c 100644
--- a/tests/baselines/reference/tscWatch/programUpdates/should-not-trigger-recompilation-because-of-program-emit/without-outDir-or-outFile-is-specified.js
+++ b/tests/baselines/reference/tscWatch/programUpdates/should-not-trigger-recompilation-because-of-program-emit/without-outDir-or-outFile-is-specified.js
@@ -84,6 +84,7 @@ interface Array<T> { length: number; [n: number]: T; }
     // "emitDecoratorMetadata": true,         /* Enables experimental support for emitting type metadata for decorators. */
 
     /* Advanced Options */
+    "skipLibCheck": true,                     /* Skip type checking of declaration files. */
     "forceConsistentCasingInFileNames": true  /* Disallow inconsistently-cased references to the same file. */
   }
 }
@@ -118,7 +119,7 @@ Output::
 
 
 Program root files: ["/user/username/projects/myproject/file1.ts","/user/username/projects/myproject/src/file2.ts"]
-Program options: {"target":1,"module":2,"strict":true,"esModuleInterop":true,"forceConsistentCasingInFileNames":true,"watch":true,"project":"/user/username/projects/myproject/tsconfig.json","configFilePath":"/user/username/projects/myproject/tsconfig.json"}
+Program options: {"target":1,"module":2,"strict":true,"esModuleInterop":true,"skipLibCheck":true,"forceConsistentCasingInFileNames":true,"watch":true,"project":"/user/username/projects/myproject/tsconfig.json","configFilePath":"/user/username/projects/myproject/tsconfig.json"}
 Program files::
 /a/lib/lib.d.ts
 /user/username/projects/myproject/file1.ts