diff --git a/copyparty/cfg.py b/copyparty/cfg.py
index 2e92305a..68cf0515 100644
--- a/copyparty/cfg.py
+++ b/copyparty/cfg.py
@@ -331,7 +331,7 @@ flagcats = {
     },
     "opds": {
         "opds": "enable OPDS",
-        "opds_exts": "file formats to list in OPDS feeds; leave empty to show everything"
+        "opds_exts": "file formats to list in OPDS feeds; leave empty to show everything",
     },
     "textfiles": {
         "md_no_br": "newline only on double-newline or two tailing spaces",