diff --git a/openmptcprouter/Makefile b/openmptcprouter/Makefile
index 99c07c47b..a1329b98f 100644
--- a/openmptcprouter/Makefile
+++ b/openmptcprouter/Makefile
@@ -29,6 +29,7 @@ endef
 
 define Package/$(PKG_NAME)/conffiles
 /etc/config/$(PKG_NAME)
+/etc/vnstat_backup.tar.gz
 endef
 
 define Build/Compile