diff --git a/lib/CodeGen/CMakeLists.txt b/lib/CodeGen/CMakeLists.txt
index 1fac39512c7..7a969f0ad8f 100644
--- a/lib/CodeGen/CMakeLists.txt
+++ b/lib/CodeGen/CMakeLists.txt
@@ -1,6 +1,7 @@
 add_llvm_library(LLVMCodeGen
   AggressiveAntiDepBreaker.cpp
   BranchFolding.cpp
+  CalcSpillWeights.cpp
   CodePlacementOpt.cpp
   CriticalAntiDepBreaker.cpp
   DeadMachineInstructionElim.cpp