diff --git a/gpc.py b/gpc.py
index 487d63a..f248f03 100644
--- a/gpc.py
+++ b/gpc.py
@@ -70,12 +70,12 @@ class Data(BaseRecord):
       self.date = date.strftime("%d%m%y")
 
    def to_string(self):
-      print(f"{self.record_type.value:03}")
+      print(f"{int(self.record_type.value):03}")
       print(f"{str(self.account)[:16].zfill(16)}")
       print(f"{str(self.payer_account).rjust(16, '0')[:16]}")
       print(f"{str(self.payer_account).rjust(16, '0')[:16]}")
 
-      return (f"{self.record_type.value:03}{str(self.account)[:16].zfill(16)}{str(self.payer_account).rjust(16, '0')[:16]}"
+      return (f"{int(self.record_type.value):03}{str(self.account)[:16].zfill(16)}{str(self.payer_account).rjust(16, '0')[:16]}"
         f"{str(self.no)[:13].zfill(13)}{int(self.balance):012}{self.code.value:1}{self.variable:010}"
         f"{self.constant_symbol:010}{self.specific_symbol:010}"
         f"{'0'*6}{str(self.client_name)[:20].ljust(20)}{'0'}{self.currency}{self.date}\r\n")