Update kloppy/domain/models/common.py

Co-authored-by: Pieter Robberechts <[email protected]>

kloppy/domain/models/common.py

@@ -135,7 +135,7 @@ def full_name(self):
             return f"{self.first_name} {self.last_name}"
         if self.role:
             return f"{self.role}_{self.referee_id}"
-        return self.referee_id
+        return f"referee_{self.referee_id}"
 
 
 @dataclass(frozen=True)