diff --git a/src/services/codefixes/convertToAsyncFunction.ts b/src/services/codefixes/convertToAsyncFunction.ts
index 944bb06505d..61e142a8a08 100644
--- a/src/services/codefixes/convertToAsyncFunction.ts
+++ b/src/services/codefixes/convertToAsyncFunction.ts
@@ -390,7 +390,6 @@ namespace ts.codefix {
         const shouldReturn = transformer.setOfExpressionsToReturn.get(getNodeId(parent).toString());
         switch (func.kind) {
             case SyntaxKind.NullKeyword:
-            case SyntaxKind.UndefinedKeyword:
                 // do not produce a transformed statement for a null or undefined argument
                 break;
             case SyntaxKind.Identifier: