diff --git a/luci-app-mosdns/luasrc/controller/mosdns.lua b/luci-app-mosdns/luasrc/controller/mosdns.lua
index 87a6b92..52f9634 100644
--- a/luci-app-mosdns/luasrc/controller/mosdns.lua
+++ b/luci-app-mosdns/luasrc/controller/mosdns.lua
@@ -26,9 +26,9 @@ function act_status()
 end
 
 function get_log()
-	luci.http.write(luci.sys.exec("[ -f $(uci -q get mosdns.mosdns.logfile) ] && cat $(uci -q get mosdns.mosdns.logfile)"))
+	luci.http.write(luci.sys.exec("cat $(/usr/share/mosdns/log_path.sh)"))
 end
 
 function clear_log()
-	luci.sys.call("cat /dev/null > $(uci -q get mosdns.mosdns.logfile)")
+	luci.sys.call("cat /dev/null > $(/usr/share/mosdns/log_path.sh)")
 end
diff --git a/luci-app-mosdns/root/etc/init.d/mosdns b/luci-app-mosdns/root/etc/init.d/mosdns
index af7b8a1..91b4049 100755
--- a/luci-app-mosdns/root/etc/init.d/mosdns
+++ b/luci-app-mosdns/root/etc/init.d/mosdns
@@ -81,7 +81,7 @@ start_service() {
 	delcron
 	setcron
 	init_yaml
-	cat /dev/null > $(uci -q get mosdns.mosdns.logfile)
+	cat /dev/null > $(/usr/share/mosdns/log_path.sh)
 	procd_open_instance mosdns
 	procd_set_param command $PROG start -c "$CONF"
 	procd_set_param user root
diff --git a/luci-app-mosdns/root/usr/share/mosdns/log_path.sh b/luci-app-mosdns/root/usr/share/mosdns/log_path.sh
new file mode 100755
index 0000000..93dca38
--- /dev/null
+++ b/luci-app-mosdns/root/usr/share/mosdns/log_path.sh
@@ -0,0 +1,9 @@
+#!/bin/bash -e
+
+configfile=$(uci -q get mosdns.mosdns.configfile)
+if [ "$configfile" = "/etc/mosdns/config.yaml" ]; then
+	uci -q get mosdns.mosdns.logfile
+else
+	[ ! -f /etc/mosdns/config_custom.yaml ] && exit 1
+	cat /etc/mosdns/config_custom.yaml | grep -A 3 log | grep file | awk -F ":" '{print $2}' | sed 's/\"//g;s/ //g'
+fi