1 files changed, 1 insertions, 1 deletions
diff --git a/include/clang/Parse/Template.h b/include/clang/Parse/Template.h
index 1f8ccfbf05c6..84f4ed96b4c3 100644
--- a/include/clang/Parse/Template.h
+++ b/include/clang/Parse/Template.h
@@ -58,7 +58,7 @@ namespace clang {
         Loc(TemplateLoc), SS(SS) { }
     
     /// \brief Determine whether the given template argument is invalid.
-    bool isInvalid() { return Arg == 0; }
+    bool isInvalid() const { return Arg == 0; }
     
     /// \brief Determine what kind of template argument we have.
     KindType getKind() const { return Kind; }