diff --git a/Makefile b/Makefile
index c412b261790..0af2c974814 100644
--- a/Makefile
+++ b/Makefile
@@ -7,7 +7,7 @@
 # 
 #===------------------------------------------------------------------------===#
 LEVEL = .
-DIRS = lib/Support utils lib tools 
+DIRS = lib/System lib/Support utils lib tools 
 
 ifneq ($(MAKECMDGOALS),tools-only)
 DIRS += runtime