diff --git a/llvm/lib/CodeGen/CMakeLists.txt b/llvm/lib/CodeGen/CMakeLists.txt
index 7a969f0ad8f4..6bc808c3c562 100644
--- a/llvm/lib/CodeGen/CMakeLists.txt
+++ b/llvm/lib/CodeGen/CMakeLists.txt
@@ -35,12 +35,13 @@ add_llvm_library(LLVMCodeGen
   MachineModuleInfoImpls.cpp
   MachinePassRegistry.cpp
   MachineRegisterInfo.cpp
-  MachineSink.cpp
   MachineSSAUpdater.cpp
+  MachineSink.cpp
   MachineVerifier.cpp
   MaxStackAlignment.cpp
   ObjectCodeEmitter.cpp
   OcamlGC.cpp
+  OptimizeExts.cpp
   PHIElimination.cpp
   Passes.cpp
   PostRASchedulerList.cpp