diff --git a/codearchiver/core.py b/codearchiver/core.py
index 510bd5c..a1e6f0d 100644
--- a/codearchiver/core.py
+++ b/codearchiver/core.py
@@ -197,7 +197,7 @@ class Metadata(list[tuple[str, str]]):
 		else:
 			cm = contextlib.nullcontext(f)
 		with cm as fp:
-			o = cls((key, value[:-1]) for key, value in map(functools.partial(str.split, sep = ': '), fp))
+			o = cls((key, value[:-1]) for key, value in map(functools.partial(str.split, sep = ': ', maxsplit = 1), fp))
 		if validate:
 			o.validate()
 		return o