diff --git a/net/vnstat/Makefile b/net/vnstat/Makefile
index 577a314cf..93d11c93b 100644
--- a/net/vnstat/Makefile
+++ b/net/vnstat/Makefile
@@ -1,5 +1,5 @@
 #
-# Copyright (C) 2006-2011 OpenWrt.org
+# Copyright (C) 2006-2013 OpenWrt.org
 #
 # This is free software, licensed under the GNU General Public License v2.
 # See /LICENSE for more information.
@@ -9,7 +9,7 @@ include $(TOPDIR)/rules.mk
 
 PKG_NAME:=vnstat
 PKG_VERSION:=1.11
-PKG_RELEASE:=3
+PKG_RELEASE:=4
 
 PKG_SOURCE:=$(PKG_NAME)-$(PKG_VERSION).tar.gz
 PKG_SOURCE_URL:=http://humdi.net/vnstat
diff --git a/net/vnstat/files/vnstat.defaults b/net/vnstat/files/vnstat.defaults
index a2d353f3f..e013b8e41 100644
--- a/net/vnstat/files/vnstat.defaults
+++ b/net/vnstat/files/vnstat.defaults
@@ -4,6 +4,7 @@ wan="$(uci -P/var/state get network.wan.ifname)"
 
 if [ -n "$wan" ]; then
 	uci -q batch <<-EOF >/dev/null
+		del_list vnstat.@vnstat[-1].interface=$wan
 		add_list vnstat.@vnstat[-1].interface=$wan
 		commit vnstat
 	EOF