diff --git a/src/compiler/parser.ts b/src/compiler/parser.ts
index 68753fdb638..361e293011b 100644
--- a/src/compiler/parser.ts
+++ b/src/compiler/parser.ts
@@ -3386,7 +3386,7 @@ namespace ts {
          *      6) - UnaryExpression[?yield]
          *      7) ~ UnaryExpression[?yield]
          *      8) ! UnaryExpression[?yield]
-         *      9) [+Await] await AwaitExpression[?yield]
+         *      9) [+Await] await UnaryExpression[?yield]
          */
         function parseSimpleUnaryExpression(): UnaryExpression {
             switch (token) {