diff --git a/lib/CodeGen/CMakeLists.txt b/lib/CodeGen/CMakeLists.txt
index 58c879e..34ff08f 100644
--- a/lib/CodeGen/CMakeLists.txt
+++ b/lib/CodeGen/CMakeLists.txt
@@ -40,7 +40,6 @@
   PreAllocSplitting.cpp
   PrologEpilogInserter.cpp
   PseudoSourceValue.cpp
-  RegAllocBigBlock.cpp
   RegAllocLinearScan.cpp
   RegAllocLocal.cpp
   RegAllocPBQP.cpp