diff --git a/lua_examples/webap_toggle_pin.lua b/lua_examples/webap_toggle_pin.lua
index 37896263..7d5a558d 100644
--- a/lua_examples/webap_toggle_pin.lua
+++ b/lua_examples/webap_toggle_pin.lua
@@ -1,32 +1,31 @@
-wifi.setmode(wifi.SOFTAP);
-wifi.ap.config({ssid="test",pwd="12345678"});
+wifi.setmode(wifi.SOFTAP)
+wifi.ap.config({ssid="test",pwd="12345678"})
 gpio.mode(1, gpio.OUTPUT)
-srv=net.createServer(net.TCP) 
-srv:listen(80,function(conn) 
+srv=net.createServer(net.TCP)
+srv:listen(80,function(conn)
     conn:on("receive", function(client,request)
-        local buf = "";
-        local _, _, method, path, vars = string.find(request, "([A-Z]+) (.+)?(.+) HTTP");
-        if(method == nil)then 
-            _, _, method, path = string.find(request, "([A-Z]+) (.+) HTTP"); 
+        local buf = ""
+        local _, _, method, path, vars = string.find(request, "([A-Z]+) (.+)?(.+) HTTP")
+        if(method == nil)then
+            _, _, method, path = string.find(request, "([A-Z]+) (.+) HTTP")
         end
         local _GET = {}
-        if (vars ~= nil)then 
-            for k, v in string.gmatch(vars, "(%w+)=(%w+)&*") do 
-                _GET[k] = v 
-            end 
+        if (vars ~= nil)then
+            for k, v in string.gmatch(vars, "(%w+)=(%w+)&*") do
+                _GET[k] = v
+            end
         end
-        buf = buf.."<h1> Hello, NodeMcu.</h1><form src=\"/\">Turn PIN1 <select name=\"pin\" onchange=\"form.submit()\">";
+        buf = buf.."<h1> Hello, NodeMcu.</h1><form src=\"/\">Turn PIN1 <select name=\"pin\" onchange=\"form.submit()\">"
         local _on,_off = "",""
         if(_GET.pin == "ON")then
-              _on = " selected=true";
-              gpio.write(1, gpio.HIGH);
+              _on = " selected=true"
+              gpio.write(1, gpio.HIGH)
         elseif(_GET.pin == "OFF")then
-              _off = " selected=\"true\"";
-              gpio.write(1, gpio.LOW);
+              _off = " selected=\"true\""
+              gpio.write(1, gpio.LOW)
         end
-        buf = buf.."<option".._on..">ON</opton><option".._off..">OFF</option></select></form>";
-        client:send(buf);
-        client:close();
-        collectgarbage();
+        buf = buf.."<option".._on..">ON</opton><option".._off..">OFF</option></select></form>"
+        client:send(buf)
     end)
+    conn:on("sent", function (c) c:close() end)
 end)