diff --git a/lib/CodeGen/PrologEpilogInserter.cpp b/lib/CodeGen/PrologEpilogInserter.cpp
index d9665cc..2c5c8c9 100644
--- a/lib/CodeGen/PrologEpilogInserter.cpp
+++ b/lib/CodeGen/PrologEpilogInserter.cpp
@@ -19,7 +19,7 @@
 //
 //===----------------------------------------------------------------------===//
 
-#include "PEI.h"
+#include "PrologEpilogInserter.h"
 #include "llvm/CodeGen/MachineDominators.h"
 #include "llvm/CodeGen/MachineLoopInfo.h"
 #include "llvm/CodeGen/MachineInstr.h"
diff --git a/lib/CodeGen/PEI.h b/lib/CodeGen/PrologEpilogInserter.h
similarity index 100%
rename from lib/CodeGen/PEI.h
rename to lib/CodeGen/PrologEpilogInserter.h
diff --git a/lib/CodeGen/ShrinkWrapping.cpp b/lib/CodeGen/ShrinkWrapping.cpp
index 7a1b4ea..e44a138 100644
--- a/lib/CodeGen/ShrinkWrapping.cpp
+++ b/lib/CodeGen/ShrinkWrapping.cpp
@@ -34,7 +34,7 @@
 
 #define DEBUG_TYPE "shrink-wrap"
 
-#include "PEI.h"
+#include "PrologEpilogInserter.h"
 #include "llvm/CodeGen/MachineDominators.h"
 #include "llvm/CodeGen/MachineLoopInfo.h"
 #include "llvm/CodeGen/MachineInstr.h"