diff --git a/luci-app-oaf/luasrc/model/cbi/appfilter/appfilter.lua b/luci-app-oaf/luasrc/model/cbi/appfilter/appfilter.lua
index 644f12a..9bc0e70 100755
--- a/luci-app-oaf/luasrc/model/cbi/appfilter/appfilter.lua
+++ b/luci-app-oaf/luasrc/model/cbi/appfilter/appfilter.lua
@@ -131,11 +131,13 @@ while true do
 end
 
 local config_users=m.uci:get_all("appfilter.user.users")
+if config_users~=nil then
 local r=utl.split(config_users, "%s+", nil, true)
 local max = table.getn(r)
 for i=1,max,1 do
 	users:value(r[i], r[i]);
 end
+end
 m:section(SimpleSection).template = "admin_network/user_status"