diff --git a/src/compiler/checker.ts b/src/compiler/checker.ts
index 03a3f7efa9b..08f4605ebe2 100644
--- a/src/compiler/checker.ts
+++ b/src/compiler/checker.ts
@@ -1958,7 +1958,7 @@ namespace ts {
                     returnType = signature.typePredicate.type;
                 }
                 else {
-                   returnType = getReturnTypeOfSignature(signature);
+                    returnType = getReturnTypeOfSignature(signature);
                 }
                 buildTypeDisplay(returnType, writer, enclosingDeclaration, flags, symbolStack);
             }