diff --git a/luci-app-oaf/luasrc/model/cbi/appfilter/appfilter.lua b/luci-app-oaf/luasrc/model/cbi/appfilter/appfilter.lua
index ea50ac7..7275081 100755
--- a/luci-app-oaf/luasrc/model/cbi/appfilter/appfilter.lua
+++ b/luci-app-oaf/luasrc/model/cbi/appfilter/appfilter.lua
@@ -30,7 +30,7 @@ s.anonymous = true
 s.addremove = false
 
 
-local class_fd = io.popen("find /etc/appfilter/ -type f -name '*.class'")
+local class_fd = io.popen("find /tmp/appfilter/ -type f -name '*.class'")
 if class_fd then
 	while true do
 		local apps
diff --git a/open-app-filter/files/gen_class.sh b/open-app-filter/files/gen_class.sh
index ab09a1c..907667c 100755
--- a/open-app-filter/files/gen_class.sh
+++ b/open-app-filter/files/gen_class.sh
@@ -2,18 +2,16 @@
 
 f_file=$1
 test -z "$f_file" && return
-
+test -d /tmp/appfilter && return
 cur_class=""
 cur_class_file=""
+mkdir /tmp/appfilter
 while read line
 do
     echo "$line"| grep "^#class"
     if [ $? -eq 0 ];then
-#	echo "match $line"
-#	echo "cur_class=$cur_class"
         class=`echo $line| grep '#class' | awk '{print $2}'`
 	if ! test -z "$class";then
-#		echo "class=$class"
 		cur_class=$class
 		cur_class_file="/etc/appfilter/${cur_class}.class"
 		if [ -e "$cur_class_file" ];then