diff --git a/include/llvm/CodeGen/RegisterAllocation.h b/include/llvm/CodeGen/RegisterAllocation.h
index 2227f8eaab4..a0e5da8a756 100644
--- a/include/llvm/CodeGen/RegisterAllocation.h
+++ b/include/llvm/CodeGen/RegisterAllocation.h
@@ -7,7 +7,7 @@
 #ifndef LLVM_CODEGEN_REGISTERALLOCATION_H
 #define LLVM_CODEGEN_REGISTERALLOCATION_H
 
-#include "llvm/Pass.h"
+class Pass;
 class TargetMachine;
 
 //----------------------------------------------------------------------------