diff --git a/lib/Transforms/IPO/DeadArgumentElimination.cpp b/lib/Transforms/IPO/DeadArgumentElimination.cpp
index 05fae52bfe1..10f2a374294 100644
--- a/lib/Transforms/IPO/DeadArgumentElimination.cpp
+++ b/lib/Transforms/IPO/DeadArgumentElimination.cpp
@@ -17,6 +17,7 @@
 //
 //===----------------------------------------------------------------------===//
 
+#define DEBUG_TYPE "deadargelim"
 #include "llvm/Transforms/IPO.h"
 #include "llvm/Module.h"
 #include "llvm/Pass.h"