diff --git a/clang/lib/Parse/Parser.cpp b/clang/lib/Parse/Parser.cpp
--- a/clang/lib/Parse/Parser.cpp
+++ b/clang/lib/Parse/Parser.cpp
@@ -34,6 +34,7 @@
   explicit ActionCommentHandler(Sema &S) : S(S) { }
 
   bool HandleComment(Preprocessor &PP, SourceRange Comment) override {
+    PP.getPPCallbacks()->SourceRangeSkipped(Comment, Comment.getEnd());
     S.ActOnComment(Comment);
     return false;
   }