diff --git a/openwrt/rules.mk b/openwrt/rules.mk
index c23d41803b..a7167ca025 100644
--- a/openwrt/rules.mk
+++ b/openwrt/rules.mk
@@ -1,4 +1,6 @@
+ifeq ($(DUMP),)
 include $(TOPDIR)/.config
+endif
 
 SHELL=/bin/bash
 export SHELL