diff --git a/doc/Makefile b/doc/Makefile
index d9d8293..19d8e7d 100644
--- a/doc/Makefile
+++ b/doc/Makefile
@@ -18,7 +18,7 @@ distclean: clean
 	rm -rf locale
 
 clean:
-	for i in $(locales);do \
+	for i in messages $(locales);do \
 	  rm -f $$i.po ; \
 	done