diff --git a/clang/lib/Sema/SemaDecl.cpp b/clang/lib/Sema/SemaDecl.cpp
index 68762e9..92400df 100644
--- a/clang/lib/Sema/SemaDecl.cpp
+++ b/clang/lib/Sema/SemaDecl.cpp
@@ -108,6 +108,7 @@
   case tok::kw_char16_t:
   case tok::kw_char32_t:
   case tok::kw_typeof:
+  case tok::annot_decltype:
   case tok::kw_decltype:
     return getLangOpts().CPlusPlus;