diff --git a/Makefile b/Makefile
index ff3b324..1ab2b30 100644
--- a/Makefile
+++ b/Makefile
@@ -48,7 +48,7 @@
 	
 clean:
 	(cd src/sys;make clean)
-	(cd src/lib/cvs;make clean)
+	(cd src/lib/csu;make clean)
 	(cd src/lib/ubix_api;make clean)
 	(cd src/lib/libc_old;make clean)
 	(cd src/lib/libc;make clean)