diff --git a/src/compiler/transformers/taggedTemplate.ts b/src/compiler/transformers/taggedTemplate.ts
index ea3e529b752dd..8dc0fe1a96465 100644
--- a/src/compiler/transformers/taggedTemplate.ts
+++ b/src/compiler/transformers/taggedTemplate.ts
@@ -63,7 +63,7 @@ namespace ts {
     }
 
     function createTemplateCooked(template: TemplateHead | TemplateMiddle | TemplateTail | NoSubstitutionTemplateLiteral) {
-        return template.templateFlags ? createIdentifier("undefined") : createLiteral(template.text);
+        return template.templateFlags ? createVoidZero() : createLiteral(template.text);
     }
 
     /**
diff --git a/tests/baselines/reference/invalidTaggedTemplateEscapeSequences(target=es2015).js b/tests/baselines/reference/invalidTaggedTemplateEscapeSequences(target=es2015).js
index 1ad643d360de1..bed4ca912d8b8 100644
--- a/tests/baselines/reference/invalidTaggedTemplateEscapeSequences(target=es2015).js
+++ b/tests/baselines/reference/invalidTaggedTemplateEscapeSequences(target=es2015).js
@@ -35,20 +35,20 @@ function tag(str, ...args) {
 }
 const a = tag `123`;
 const b = tag `123 ${100}`;
-const x = tag(__makeTemplateObject([undefined, undefined, " wonderful ", undefined], ["\\u{hello} ", " \\xtraordinary ", " wonderful ", " \\uworld"]), 100, 200, 300);
+const x = tag(__makeTemplateObject([void 0, void 0, " wonderful ", void 0], ["\\u{hello} ", " \\xtraordinary ", " wonderful ", " \\uworld"]), 100, 200, 300);
 const y = `\u{hello} ${100} \xtraordinary ${200} wonderful ${300} \uworld`; // should error with NoSubstitutionTemplate
-const z = tag(__makeTemplateObject([undefined], ["\\u{hello} \\xtraordinary wonderful \\uworld"])); // should work with Tagged NoSubstitutionTemplate
+const z = tag(__makeTemplateObject([void 0], ["\\u{hello} \\xtraordinary wonderful \\uworld"])); // should work with Tagged NoSubstitutionTemplate
 const a1 = tag `${100}\0`; // \0
-const a2 = tag(__makeTemplateObject(["", undefined], ["", "\\00"]), 100); // \\00
-const a3 = tag(__makeTemplateObject(["", undefined], ["", "\\u"]), 100); // \\u
-const a4 = tag(__makeTemplateObject(["", undefined], ["", "\\u0"]), 100); // \\u0
-const a5 = tag(__makeTemplateObject(["", undefined], ["", "\\u00"]), 100); // \\u00
-const a6 = tag(__makeTemplateObject(["", undefined], ["", "\\u000"]), 100); // \\u000
+const a2 = tag(__makeTemplateObject(["", void 0], ["", "\\00"]), 100); // \\00
+const a3 = tag(__makeTemplateObject(["", void 0], ["", "\\u"]), 100); // \\u
+const a4 = tag(__makeTemplateObject(["", void 0], ["", "\\u0"]), 100); // \\u0
+const a5 = tag(__makeTemplateObject(["", void 0], ["", "\\u00"]), 100); // \\u00
+const a6 = tag(__makeTemplateObject(["", void 0], ["", "\\u000"]), 100); // \\u000
 const a7 = tag `${100}\u0000`; // \u0000
-const a8 = tag(__makeTemplateObject(["", undefined], ["", "\\u{"]), 100); // \\u{
+const a8 = tag(__makeTemplateObject(["", void 0], ["", "\\u{"]), 100); // \\u{
 const a9 = tag `${100}\u{10FFFF}`; // \\u{10FFFF
-const a10 = tag(__makeTemplateObject(["", undefined], ["", "\\u{1f622"]), 100); // \\u{1f622
+const a10 = tag(__makeTemplateObject(["", void 0], ["", "\\u{1f622"]), 100); // \\u{1f622
 const a11 = tag `${100}\u{1f622}`; // \u{1f622}
-const a12 = tag(__makeTemplateObject(["", undefined], ["", "\\x"]), 100); // \\x
-const a13 = tag(__makeTemplateObject(["", undefined], ["", "\\x0"]), 100); // \\x0
+const a12 = tag(__makeTemplateObject(["", void 0], ["", "\\x"]), 100); // \\x
+const a13 = tag(__makeTemplateObject(["", void 0], ["", "\\x0"]), 100); // \\x0
 const a14 = tag `${100}\x00`; // \x00
diff --git a/tests/baselines/reference/invalidTaggedTemplateEscapeSequences(target=es5).js b/tests/baselines/reference/invalidTaggedTemplateEscapeSequences(target=es5).js
index 362e2cf175cfc..6e0c375edb21a 100644
--- a/tests/baselines/reference/invalidTaggedTemplateEscapeSequences(target=es5).js
+++ b/tests/baselines/reference/invalidTaggedTemplateEscapeSequences(target=es5).js
@@ -39,20 +39,20 @@ function tag(str) {
 }
 var a = tag(__makeTemplateObject(["123"], ["123"]));
 var b = tag(__makeTemplateObject(["123 ", ""], ["123 ", ""]), 100);
-var x = tag(__makeTemplateObject([undefined, undefined, " wonderful ", undefined], ["\\u{hello} ", " \\xtraordinary ", " wonderful ", " \\uworld"]), 100, 200, 300);
+var x = tag(__makeTemplateObject([void 0, void 0, " wonderful ", void 0], ["\\u{hello} ", " \\xtraordinary ", " wonderful ", " \\uworld"]), 100, 200, 300);
 var y = "hello} " + 100 + " traordinary " + 200 + " wonderful " + 300 + " world"; // should error with NoSubstitutionTemplate
-var z = tag(__makeTemplateObject([undefined], ["\\u{hello} \\xtraordinary wonderful \\uworld"])); // should work with Tagged NoSubstitutionTemplate
+var z = tag(__makeTemplateObject([void 0], ["\\u{hello} \\xtraordinary wonderful \\uworld"])); // should work with Tagged NoSubstitutionTemplate
 var a1 = tag(__makeTemplateObject(["", "\0"], ["", "\\0"]), 100); // \0
-var a2 = tag(__makeTemplateObject(["", undefined], ["", "\\00"]), 100); // \\00
-var a3 = tag(__makeTemplateObject(["", undefined], ["", "\\u"]), 100); // \\u
-var a4 = tag(__makeTemplateObject(["", undefined], ["", "\\u0"]), 100); // \\u0
-var a5 = tag(__makeTemplateObject(["", undefined], ["", "\\u00"]), 100); // \\u00
-var a6 = tag(__makeTemplateObject(["", undefined], ["", "\\u000"]), 100); // \\u000
+var a2 = tag(__makeTemplateObject(["", void 0], ["", "\\00"]), 100); // \\00
+var a3 = tag(__makeTemplateObject(["", void 0], ["", "\\u"]), 100); // \\u
+var a4 = tag(__makeTemplateObject(["", void 0], ["", "\\u0"]), 100); // \\u0
+var a5 = tag(__makeTemplateObject(["", void 0], ["", "\\u00"]), 100); // \\u00
+var a6 = tag(__makeTemplateObject(["", void 0], ["", "\\u000"]), 100); // \\u000
 var a7 = tag(__makeTemplateObject(["", "\0"], ["", "\\u0000"]), 100); // \u0000
-var a8 = tag(__makeTemplateObject(["", undefined], ["", "\\u{"]), 100); // \\u{
+var a8 = tag(__makeTemplateObject(["", void 0], ["", "\\u{"]), 100); // \\u{
 var a9 = tag(__makeTemplateObject(["", "\uDBFF\uDFFF"], ["", "\\u{10FFFF}"]), 100); // \\u{10FFFF
-var a10 = tag(__makeTemplateObject(["", undefined], ["", "\\u{1f622"]), 100); // \\u{1f622
+var a10 = tag(__makeTemplateObject(["", void 0], ["", "\\u{1f622"]), 100); // \\u{1f622
 var a11 = tag(__makeTemplateObject(["", "\uD83D\uDE22"], ["", "\\u{1f622}"]), 100); // \u{1f622}
-var a12 = tag(__makeTemplateObject(["", undefined], ["", "\\x"]), 100); // \\x
-var a13 = tag(__makeTemplateObject(["", undefined], ["", "\\x0"]), 100); // \\x0
+var a12 = tag(__makeTemplateObject(["", void 0], ["", "\\x"]), 100); // \\x
+var a13 = tag(__makeTemplateObject(["", void 0], ["", "\\x0"]), 100); // \\x0
 var a14 = tag(__makeTemplateObject(["", "\0"], ["", "\\x00"]), 100); // \x00
diff --git a/tests/baselines/reference/invalidTaggedTemplateEscapeSequences.js b/tests/baselines/reference/invalidTaggedTemplateEscapeSequences.js
index 362e2cf175cfc..58984b3018c66 100644
--- a/tests/baselines/reference/invalidTaggedTemplateEscapeSequences.js
+++ b/tests/baselines/reference/invalidTaggedTemplateEscapeSequences.js
@@ -1,28 +1,28 @@
 //// [invalidTaggedTemplateEscapeSequences.ts]
-function tag (str: any, ...args: any[]): any {
-  return str
-}
-
-const a = tag`123`
-const b = tag`123 ${100}`
-const x = tag`\u{hello} ${ 100 } \xtraordinary ${ 200 } wonderful ${ 300 } \uworld`;
-const y = `\u{hello} ${ 100 } \xtraordinary ${ 200 } wonderful ${ 300 } \uworld`; // should error with NoSubstitutionTemplate
-const z = tag`\u{hello} \xtraordinary wonderful \uworld` // should work with Tagged NoSubstitutionTemplate
-
-const a1 = tag`${ 100 }\0` // \0
-const a2 = tag`${ 100 }\00` // \\00
-const a3 = tag`${ 100 }\u` // \\u
-const a4 = tag`${ 100 }\u0` // \\u0
-const a5 = tag`${ 100 }\u00` // \\u00
-const a6 = tag`${ 100 }\u000` // \\u000
-const a7 = tag`${ 100 }\u0000` // \u0000
-const a8 = tag`${ 100 }\u{` // \\u{
-const a9 = tag`${ 100 }\u{10FFFF}` // \\u{10FFFF
-const a10 = tag`${ 100 }\u{1f622` // \\u{1f622
-const a11 = tag`${ 100 }\u{1f622}` // \u{1f622}
-const a12 = tag`${ 100 }\x` // \\x
-const a13 = tag`${ 100 }\x0` // \\x0
-const a14 = tag`${ 100 }\x00` // \x00
+function tag (str: any, ...args: any[]): any {
+  return str
+}
+
+const a = tag`123`
+const b = tag`123 ${100}`
+const x = tag`\u{hello} ${ 100 } \xtraordinary ${ 200 } wonderful ${ 300 } \uworld`;
+const y = `\u{hello} ${ 100 } \xtraordinary ${ 200 } wonderful ${ 300 } \uworld`; // should error with NoSubstitutionTemplate
+const z = tag`\u{hello} \xtraordinary wonderful \uworld` // should work with Tagged NoSubstitutionTemplate
+
+const a1 = tag`${ 100 }\0` // \0
+const a2 = tag`${ 100 }\00` // \\00
+const a3 = tag`${ 100 }\u` // \\u
+const a4 = tag`${ 100 }\u0` // \\u0
+const a5 = tag`${ 100 }\u00` // \\u00
+const a6 = tag`${ 100 }\u000` // \\u000
+const a7 = tag`${ 100 }\u0000` // \u0000
+const a8 = tag`${ 100 }\u{` // \\u{
+const a9 = tag`${ 100 }\u{10FFFF}` // \\u{10FFFF
+const a10 = tag`${ 100 }\u{1f622` // \\u{1f622
+const a11 = tag`${ 100 }\u{1f622}` // \u{1f622}
+const a12 = tag`${ 100 }\x` // \\x
+const a13 = tag`${ 100 }\x0` // \\x0
+const a14 = tag`${ 100 }\x00` // \x00
 
 
 //// [invalidTaggedTemplateEscapeSequences.js]
@@ -39,20 +39,20 @@ function tag(str) {
 }
 var a = tag(__makeTemplateObject(["123"], ["123"]));
 var b = tag(__makeTemplateObject(["123 ", ""], ["123 ", ""]), 100);
-var x = tag(__makeTemplateObject([undefined, undefined, " wonderful ", undefined], ["\\u{hello} ", " \\xtraordinary ", " wonderful ", " \\uworld"]), 100, 200, 300);
+var x = tag(__makeTemplateObject([void 0, void 0, " wonderful ", void 0], ["\\u{hello} ", " \\xtraordinary ", " wonderful ", " \\uworld"]), 100, 200, 300);
 var y = "hello} " + 100 + " traordinary " + 200 + " wonderful " + 300 + " world"; // should error with NoSubstitutionTemplate
-var z = tag(__makeTemplateObject([undefined], ["\\u{hello} \\xtraordinary wonderful \\uworld"])); // should work with Tagged NoSubstitutionTemplate
+var z = tag(__makeTemplateObject([void 0], ["\\u{hello} \\xtraordinary wonderful \\uworld"])); // should work with Tagged NoSubstitutionTemplate
 var a1 = tag(__makeTemplateObject(["", "\0"], ["", "\\0"]), 100); // \0
-var a2 = tag(__makeTemplateObject(["", undefined], ["", "\\00"]), 100); // \\00
-var a3 = tag(__makeTemplateObject(["", undefined], ["", "\\u"]), 100); // \\u
-var a4 = tag(__makeTemplateObject(["", undefined], ["", "\\u0"]), 100); // \\u0
-var a5 = tag(__makeTemplateObject(["", undefined], ["", "\\u00"]), 100); // \\u00
-var a6 = tag(__makeTemplateObject(["", undefined], ["", "\\u000"]), 100); // \\u000
+var a2 = tag(__makeTemplateObject(["", void 0], ["", "\\00"]), 100); // \\00
+var a3 = tag(__makeTemplateObject(["", void 0], ["", "\\u"]), 100); // \\u
+var a4 = tag(__makeTemplateObject(["", void 0], ["", "\\u0"]), 100); // \\u0
+var a5 = tag(__makeTemplateObject(["", void 0], ["", "\\u00"]), 100); // \\u00
+var a6 = tag(__makeTemplateObject(["", void 0], ["", "\\u000"]), 100); // \\u000
 var a7 = tag(__makeTemplateObject(["", "\0"], ["", "\\u0000"]), 100); // \u0000
-var a8 = tag(__makeTemplateObject(["", undefined], ["", "\\u{"]), 100); // \\u{
+var a8 = tag(__makeTemplateObject(["", void 0], ["", "\\u{"]), 100); // \\u{
 var a9 = tag(__makeTemplateObject(["", "\uDBFF\uDFFF"], ["", "\\u{10FFFF}"]), 100); // \\u{10FFFF
-var a10 = tag(__makeTemplateObject(["", undefined], ["", "\\u{1f622"]), 100); // \\u{1f622
+var a10 = tag(__makeTemplateObject(["", void 0], ["", "\\u{1f622"]), 100); // \\u{1f622
 var a11 = tag(__makeTemplateObject(["", "\uD83D\uDE22"], ["", "\\u{1f622}"]), 100); // \u{1f622}
-var a12 = tag(__makeTemplateObject(["", undefined], ["", "\\x"]), 100); // \\x
-var a13 = tag(__makeTemplateObject(["", undefined], ["", "\\x0"]), 100); // \\x0
+var a12 = tag(__makeTemplateObject(["", void 0], ["", "\\x"]), 100); // \\x
+var a13 = tag(__makeTemplateObject(["", void 0], ["", "\\x0"]), 100); // \\x0
 var a14 = tag(__makeTemplateObject(["", "\0"], ["", "\\x00"]), 100); // \x00