diff --git a/relay.py b/relay.py
index ce617c0..f04828e 100755
--- a/relay.py
+++ b/relay.py
@@ -75,7 +75,7 @@ if action != 'status':
     #print ('Renvoie :\r\n' + bytes) 
 
 ser.write('?RLY\r\n'.encode('ascii'))
-answer = ser.readline()
+answer = ser.readline().decode('ascii')
 status = ''
 for char in answer:
   if char in ['0', '1']: