diff --git a/openwrt/Makefile b/openwrt/Makefile
index 25f60e1e54..41cda0b866 100644
--- a/openwrt/Makefile
+++ b/openwrt/Makefile
@@ -113,7 +113,7 @@ dirclean: clean
 	rm -rf staging_dir_* toolchain_build_*
 
 distclean: dirclean config-clean
-	rm -rf dl .*config* .pkg*
+	rm -rf dl .*config* .pkg* .prereq
 
 .PHONY: FORCE
 FORCE: