diff --git a/lib/CodeGen/Makefile b/lib/CodeGen/Makefile
index 59bb0cfb06a..52fa0dbf0d9 100644
--- a/lib/CodeGen/Makefile
+++ b/lib/CodeGen/Makefile
@@ -1,5 +1,5 @@
 LEVEL = ../..
-PARALLEL_DIRS = PreOpts InstrSelection InstrSched RegAlloc PostOpts Mapping Selection
+PARALLEL_DIRS = PreOpts InstrSelection InstrSched RegAlloc PostOpts Selection
 LIBRARYNAME = codegen
 
 include $(LEVEL)/Makefile.common