diff --git a/sale.py b/sale.py
index 1261dfb..a40c598 100644
--- a/sale.py
+++ b/sale.py
@@ -268,7 +268,7 @@ class Sale(metaclass=PoolMeta):
 
         if printer.type_ == 'network':
             content["printer_type"] = "Network"
-            content["ip_printer"] = str(printer.ip_address),
+            content["ip_printer"] = str(printer.ip_address)
         else:
             if printer.type_ == 'usb':
                 content["printer_type"] = "USB"
@@ -360,7 +360,7 @@ class Sale(metaclass=PoolMeta):
 
         if printer.type_ == 'network':
             content["printer_type"] = "Network"
-            content["ip_printer"] = str(printer.ip_address),
+            content["ip_printer"] = str(printer.ip_address)
         else:
             if printer.type_ == 'usb':
                 content["printer_type"] = "USB"