diff --git a/src/compiler/checker.ts b/src/compiler/checker.ts
index 80477ea1841..c75ba19df2f 100644
--- a/src/compiler/checker.ts
+++ b/src/compiler/checker.ts
@@ -3267,7 +3267,7 @@ module ts {
                 }
 
                 links.resolvedSignature = createSignature(declaration, typeParameters, parameters, returnType, typePredicate,
-                    minArgumentCount, hasRestParameters(declaration), hasStringLiterals);
+                    minArgumentCount, hasRestParameter(declaration), hasStringLiterals);
             }
             return links.resolvedSignature;
         }