diff --git a/lib/Makefile b/lib/Makefile
index d0f6f57d393..ac80c155cd3 100644
--- a/lib/Makefile
+++ b/lib/Makefile
@@ -1,6 +1,6 @@
 LEVEL = ..
 
-PARALLEL_DIRS = VMCore Analysis Transforms AsmParser Bytecode Support CodeGen Target CWriter
+PARALLEL_DIRS = VMCore Analysis Transforms AsmParser Bytecode Support CodeGen Target CWriter ExecutionEngine
 
 include $(LEVEL)/Makefile.common