diff --git a/src/compiler/checker.ts b/src/compiler/checker.ts
index 8fee90764ce..6d083d07385 100644
--- a/src/compiler/checker.ts
+++ b/src/compiler/checker.ts
@@ -24629,7 +24629,6 @@ namespace ts {
                 case SyntaxKind.ConstructorType:
                 case SyntaxKind.CallSignature:
                 case SyntaxKind.ConstructSignature:
-                    return checkSignatureDeclaration(<SignatureDeclaration>node);
                 case SyntaxKind.IndexSignature:
                     return checkSignatureDeclaration(<SignatureDeclaration>node);
                 case SyntaxKind.MethodDeclaration: