diff --git a/lib/CodeGen/CodeGenModule.h b/lib/CodeGen/CodeGenModule.h
index 5609731..2e58337 100644
--- a/lib/CodeGen/CodeGenModule.h
+++ b/lib/CodeGen/CodeGenModule.h
@@ -31,6 +31,8 @@
 #include "llvm/Support/ValueHandle.h"
 #include <list>
 
+#define ATTACH_DEBUG_INFO_TO_AN_INSN 1 
+
 namespace llvm {
   class Module;
   class Constant;