diff --git a/main.lua b/main.lua
index 1f04a16..7bb98a4 100644
--- a/main.lua
+++ b/main.lua
@@ -84,7 +84,7 @@ function normalOperation()
     end
     print("Fg Color: " .. tostring(string.byte(color,1)) .. "x" .. tostring(string.byte(color,2)) .. "x" .. tostring(string.byte(color,3)) )
    
-    connect_counter=0
+    local connect_counter=0
     -- Wait to be connect to the WiFi access point. 
     local wifitimer = tmr.create()
     wifitimer:register(5000, tmr.ALARM_SINGLE, function (t)
diff --git a/mqtt.lua b/mqtt.lua
index 7346850..ae5efc4 100644
--- a/mqtt.lua
+++ b/mqtt.lua
@@ -1,8 +1,8 @@
 -- Global variable
-m=nil
-mqttConnected = false
+local m=nil
+local mqttConnected = false
 -- Temp:
-t=nil
+local t=nil
 
 function handleSingleCommand(client, topic, data)
     if (data == "ON") then
@@ -157,7 +157,6 @@ function startMqttClient()
                 local temp = nil
                 if (t ~= nil) then
                     temp=readTemp()
-                    print(tostring(temp) .. "°C")
                 end
                 if (oldBrightness ~= briPercent) then
                  m:publish(mqttPrefix .. "/brightness", tostring(briPercent), 0, 0)