diff --git a/squelch_cc.py b/squelch_cc.py
index 0c766daf..b5487e1c 100644
--- a/squelch_cc.py
+++ b/squelch_cc.py
@@ -164,5 +164,7 @@ def increment_mode():
 		
 GPIO.setmode(GPIO.BCM)
 GPIO.setwarnings(False)
+GPIO.setup(squelch, GPIO.IN, pull_up_down=GPIO.PUD_UP)  ## pull up in case pin is not connected
+
 while True:
 	command_control_check()