diff --git a/main.py b/main.py
index a87a88f..d5d30a1 100644
--- a/main.py
+++ b/main.py
@@ -168,19 +168,24 @@ if __name__ == '__main__':
         topic = str(msg.topic)
         payload = str(msg.payload.decode("utf-8"))
         if topic == "server-rack-led-1/power":
+            global power
             power = payload
         
         elif topic == "server-rack-led-1/r":
+            global r
             r = payload
 
         elif topic == "server-rack-led-1/g":
+            global g
             g = payload
 
         elif topic == "server-rack-led-1/b":
+            global b
             b = payload
 
         elif topic == "server-rack-led-1/mode":
             if payload == "0":
+                global mode
                 mode = 0
             elif payload == "1":
                 mode = 1