diff --git a/lib/Parse/ParseDeclCXX.cpp b/lib/Parse/ParseDeclCXX.cpp
index f623c8e..d3b34b9 100644
--- a/lib/Parse/ParseDeclCXX.cpp
+++ b/lib/Parse/ParseDeclCXX.cpp
@@ -603,7 +603,7 @@
 
   const char *PrevSpec = 0;
   unsigned DiagID;
-  if (DS.SetTypeSpecType(DeclSpec::TST_underlying_type, StartLoc, PrevSpec,
+  if (DS.SetTypeSpecType(DeclSpec::TST_underlyingType, StartLoc, PrevSpec,
                          DiagID, Result.release()))
     Diag(StartLoc, DiagID) << PrevSpec;
 }