diff --git a/lib/Analysis/DataStructure/TopDownClosure.cpp b/lib/Analysis/DataStructure/TopDownClosure.cpp
index 55a37db..d0bb7e1 100644
--- a/lib/Analysis/DataStructure/TopDownClosure.cpp
+++ b/lib/Analysis/DataStructure/TopDownClosure.cpp
@@ -13,7 +13,7 @@
 // like pointer analysis.
 //
 //===----------------------------------------------------------------------===//
-
+#define DEBUG_TYPE "td_dsa"
 #include "llvm/Analysis/DataStructure/DataStructure.h"
 #include "llvm/Module.h"
 #include "llvm/DerivedTypes.h"