diff --git a/main.py b/main.py
index 14cd23d..e2a0937 100755
--- a/main.py
+++ b/main.py
@@ -35,11 +35,13 @@ SLEEP_BETWEEN_BALANCE_N_TOPUP = config.getint('globals', 'SLEEP_BETWEEN_BALANCE_
 TOPUP_USSD_TIMEOUT = config.getint('globals', 'TOPUP_USSD_TIMEOUT')
 SLEEP_AFTER_USSD_ERROR = 180
 
-MIN_SIGNAL_STRENGTH = 13
+MIN_SIGNAL_STRENGTH = 0
 try:
     MIN_SIGNAL_STRENGTH = config.getint('globals', 'MIN_SIGNAL_STRENGTH')
 except:
     pass
+if not MIN_SIGNAL_STRENGTH:
+    MIN_SIGNAL_STRENGTH = 13
     
 MIN_BALANCE = config.getint('globals', 'MIN_BALANCE')