diff --git a/openwrt/rules.mk b/openwrt/rules.mk
index c23d41803b6733d8315786f6522fccc2f216ea1c..a7167ca0253b085dc92ccc7dac799c5ab46ae767 100644
--- a/openwrt/rules.mk
+++ b/openwrt/rules.mk
@@ -1,4 +1,6 @@
+ifeq ($(DUMP),)
 include $(TOPDIR)/.config
+endif
 
 SHELL=/bin/bash
 export SHELL