--- a/include/package.mk
+++ b/include/package.mk
@@ -354,3 +354,11 @@ dist:
 
 distcheck:
 	$(Build/DistCheck)
+
+ifndef Package/$(PKG_NAME)/conffiles
+define Package/$(PKG_NAME)/conffiles
+/etc/config/
+/etc/$(PKG_NAME)/
+endef
+endif
+