diff --git a/version.py b/version.py
index 926abbf..4c6cfbd 100644
--- a/version.py
+++ b/version.py
@@ -7,5 +7,5 @@ date = datetime.datetime.now(UTC)
 
 def build(incoming, addition=""):
     with open(incoming, 'w') as f:
-        f.write('\n'.join([str(date)]+addition))
+        f.write('\n'.join([str(date)]+str(addition)))
     f.close()