diff --git a/packages/@angular/cli/blueprints/ng/files/__path__/tsconfig.spec.json b/packages/@angular/cli/blueprints/ng/files/__path__/tsconfig.spec.json
index dfbeeb249854..5dc8eeb57474 100644
--- a/packages/@angular/cli/blueprints/ng/files/__path__/tsconfig.spec.json
+++ b/packages/@angular/cli/blueprints/ng/files/__path__/tsconfig.spec.json
@@ -12,7 +12,7 @@
     ],<% } %>
     "outDir": "<%= relativeRootPath %>/out-tsc/spec",
     "module": "commonjs",
-    "target": "es6",
+    "target": "es5",
     "baseUrl": "",
     "types": [
       "jasmine",
diff --git a/packages/@angular/cli/blueprints/ng/files/e2e/tsconfig.e2e.json b/packages/@angular/cli/blueprints/ng/files/e2e/tsconfig.e2e.json
index 7697b8b04eb4..ff0fdbcff9a2 100644
--- a/packages/@angular/cli/blueprints/ng/files/e2e/tsconfig.e2e.json
+++ b/packages/@angular/cli/blueprints/ng/files/e2e/tsconfig.e2e.json
@@ -12,7 +12,7 @@
     ],<% } %>
     "outDir": "../dist/out-tsc-e2e",
     "module": "commonjs",
-    "target": "es6",
+    "target": "es5",
     "types":[
       "jasmine",
       "node"