diff --git a/llvm/lib/CodeGen/ExecutionDomainFix.cpp b/llvm/lib/CodeGen/ExecutionDomainFix.cpp
index a2dd5ee..2cca05e 100644
--- a/llvm/lib/CodeGen/ExecutionDomainFix.cpp
+++ b/llvm/lib/CodeGen/ExecutionDomainFix.cpp
@@ -9,6 +9,7 @@
 #include "llvm/CodeGen/ExecutionDomainFix.h"
 #include "llvm/CodeGen/MachineRegisterInfo.h"
 #include "llvm/CodeGen/TargetInstrInfo.h"
+#include "llvm/Support/Debug.h"
 
 using namespace llvm;