diff --git a/src/compiler/emitter.ts b/src/compiler/emitter.ts
index 5059448903c..108fa8a5e41 100644
--- a/src/compiler/emitter.ts
+++ b/src/compiler/emitter.ts
@@ -2189,7 +2189,7 @@ module ts {
                 }
                 write("], ");
                 
-                emit(node.tag);
+                emitParenthesizedIf(node.tag, needsParenthesisForPropertyAccessOrInvocation(node.tag));
                 write("(");
                 emit(tempVariable);
                 
@@ -2475,7 +2475,7 @@ module ts {
                 emit((<SpreadElementExpression>node).expression);
             }
 
-            function needsParenthesisForPropertyAccess(node: Expression) {
+            function needsParenthesisForPropertyAccessOrInvocation(node: Expression) {
                 switch (node.kind) {
                     case SyntaxKind.Identifier:
                     case SyntaxKind.ArrayLiteralExpression:
@@ -2517,7 +2517,7 @@ module ts {
                     var e = elements[pos];
                     if (e.kind === SyntaxKind.SpreadElementExpression) {
                         e = (<SpreadElementExpression>e).expression;
-                        emitParenthesizedIf(e, /*parenthesized*/ group === 0 && needsParenthesisForPropertyAccess(e));
+                        emitParenthesizedIf(e, /*parenthesized*/ group === 0 && needsParenthesisForPropertyAccessOrInvocation(e));
                         pos++;
                     }
                     else {
diff --git a/tests/baselines/reference/templateStringInObjectLiteral.js b/tests/baselines/reference/templateStringInObjectLiteral.js
index 0381e9a95e7..5a096b0adfa 100644
--- a/tests/baselines/reference/templateStringInObjectLiteral.js
+++ b/tests/baselines/reference/templateStringInObjectLiteral.js
@@ -5,8 +5,8 @@ var x = {
 }
 
 //// [templateStringInObjectLiteral.js]
-var x = (_a = ["b"], _a.raw = ["b"], {
+var x = (_a = ["b"], _a.raw = ["b"], ({
     a: "abc" + 123 + "def"
-}(_a));
+})(_a));
 321;
 var _a;
diff --git a/tests/baselines/reference/templateStringInPropertyName1.js b/tests/baselines/reference/templateStringInPropertyName1.js
index 239ba78d827..18e35c475e3 100644
--- a/tests/baselines/reference/templateStringInPropertyName1.js
+++ b/tests/baselines/reference/templateStringInPropertyName1.js
@@ -4,6 +4,6 @@ var x = {
 }
 
 //// [templateStringInPropertyName1.js]
-var x = (_a = ["a"], _a.raw = ["a"], {}(_a));
+var x = (_a = ["a"], _a.raw = ["a"], ({})(_a));
 321;
 var _a;
diff --git a/tests/baselines/reference/templateStringInPropertyName2.js b/tests/baselines/reference/templateStringInPropertyName2.js
index 8a71a6e30be..1a2995ca08f 100644
--- a/tests/baselines/reference/templateStringInPropertyName2.js
+++ b/tests/baselines/reference/templateStringInPropertyName2.js
@@ -4,6 +4,6 @@ var x = {
 }
 
 //// [templateStringInPropertyName2.js]
-var x = (_a = ["abc", "def", "ghi"], _a.raw = ["abc", "def", "ghi"], {}(_a, 123, 456));
+var x = (_a = ["abc", "def", "ghi"], _a.raw = ["abc", "def", "ghi"], ({})(_a, 123, 456));
 321;
 var _a;
diff --git a/tests/baselines/reference/templateStringInTaggedTemplate.js b/tests/baselines/reference/templateStringInTaggedTemplate.js
index 61964b06d47..3ba70ba84b6 100644
--- a/tests/baselines/reference/templateStringInTaggedTemplate.js
+++ b/tests/baselines/reference/templateStringInTaggedTemplate.js
@@ -2,5 +2,5 @@
 `I AM THE ${ `${ `TAG` } ` } PORTION`    `I ${ "AM" } THE TEMPLATE PORTION`
 
 //// [templateStringInTaggedTemplate.js]
-(_a = ["I ", " THE TEMPLATE PORTION"], _a.raw = ["I ", " THE TEMPLATE PORTION"], "I AM THE " + "TAG" + " " + " PORTION"(_a, "AM"));
+(_a = ["I ", " THE TEMPLATE PORTION"], _a.raw = ["I ", " THE TEMPLATE PORTION"], ("I AM THE " + "TAG" + " " + " PORTION")(_a, "AM"));
 var _a;