diff --git a/chatmastermind/storage.py b/chatmastermind/storage.py
index aa6288c..ac59eb5 100644
--- a/chatmastermind/storage.py
+++ b/chatmastermind/storage.py
@@ -7,7 +7,7 @@ from typing import List, Dict, Any, Optional
 
 def read_file(fname: pathlib.Path, tags_only: bool = False) -> Dict[str, Any]:
     with open(fname, "r") as fd:
-        tagline = fd.readline().strip().split(':')[1].strip()
+        tagline = fd.readline().strip().split(':', maxsplit=1)[1].strip()
         # also support tags separated by ',' (old format)
         separator = ',' if ',' in tagline else ' '
         tags = [t.strip() for t in tagline.split(separator)]