diff --git a/api.py b/api.py
index 8304fe7..9c26877 100644
--- a/api.py
+++ b/api.py
@@ -111,7 +111,8 @@ def print_customer_order(data, address):
     printer.text('========================\n')
     
     printer.set(align='left', bold=False, height=6, width=6)
-    pizza = None
+    combination_pizza = False
+    pizza = 0
     for line in d["lines"]:
         if line['type'] != 'title':
             if combination_pizza and pizza < 2: