diff --git a/lang/cem/lint/proto.make b/lang/cem/lint/proto.make
index dfd0431c4..94935fb5e 100644
--- a/lang/cem/lint/proto.make
+++ b/lang/cem/lint/proto.make
@@ -9,3 +9,9 @@ all:
 
 install:
 	for i in $(DIRS) ; do cd $$i ; make install ; cd .. ; done
+
+clean:
+	for i in $(DIRS) ; do cd $$i ; make clean ; cd .. ; done
+
+cmp:
+	for i in $(DIRS) ; do cd $$i ; make cmp ; cd .. ; done