diff --git a/llvm/lib/CodeGen/Makefile b/llvm/lib/CodeGen/Makefile
index c37630a79bc3..57ee9160fcf2 100644
--- a/llvm/lib/CodeGen/Makefile
+++ b/llvm/lib/CodeGen/Makefile
@@ -1,4 +1,4 @@
 LEVEL = ../..
-DIRS  = PreSelection InstrSelection InstrSched RegAlloc Mapping
+DIRS  = PreOpts InstrSelection InstrSched RegAlloc PostOpts Mapping
 
 include $(LEVEL)/Makefile.common