diff --git a/src/compiler/parser.ts b/src/compiler/parser.ts
index 35536bb2246..755c583b718 100644
--- a/src/compiler/parser.ts
+++ b/src/compiler/parser.ts
@@ -4538,7 +4538,7 @@ namespace ts {
                 // isn't actually allowed, but we want to treat it as a lambda so we can provide
                 // a good error message.
                 if (isModifierKind(second) && second !== SyntaxKind.AsyncKeyword && lookAhead(nextTokenIsIdentifier)) {
-                    if (lookAhead(() => nextToken() === SyntaxKind.AsKeyword)) {
+                    if (nextToken() === SyntaxKind.AsKeyword) {
                         // https://github.com/microsoft/TypeScript/issues/44466
                         return Tristate.False;
                     }