diff --git a/src/compiler/checker.ts b/src/compiler/checker.ts
index 8d930bbfb72..91f806e0518 100644
--- a/src/compiler/checker.ts
+++ b/src/compiler/checker.ts
@@ -5360,7 +5360,7 @@ module ts {
 
             // Grammar checking for computedPropertyName
             forEach(node.properties, property => {
-                if (property.name && property.name.kind === SyntaxKind.ComputedPropertyName) {
+                if (property.name.kind === SyntaxKind.ComputedPropertyName) {
                     checkGrammarComputedPropertyName(<ComputedPropertyName>property.name);
                 }
             });