diff --git a/lib/Makefile b/lib/Makefile
index cf205e3596f..5ff4f16e62f 100644
--- a/lib/Makefile
+++ b/lib/Makefile
@@ -1,5 +1,5 @@
 LEVEL = ..
-DIRS = VMCore Analysis Assembly Bytecode Optimizations Support CodeGen Target
+DIRS = VMCore Analysis Transforms Assembly Bytecode Optimizations Support CodeGen Target
 
 include $(LEVEL)/Makefile.common