diff --git a/max7301/max7301.py b/max7301/max7301.py
index b1e1d55..ca1ffbf 100644
--- a/max7301/max7301.py
+++ b/max7301/max7301.py
@@ -46,7 +46,7 @@ def get_pin(self, pin):
         return value
     
     def _get_conf_register_for_pin(self, pin):
-        return (pin-4)/4 + 0x09
+        return (pin-4)//4 + 0x09
  
     def _get_value_register_for_pin(self, pin):
         return 0x20 + pin