diff --git a/config.jsonc b/config.jsonc
index 04f3fad..6947895 100644
--- a/config.jsonc
+++ b/config.jsonc
@@ -201,7 +201,7 @@
             "id": "group",
             "operator": "+",
             "title": "Group",
-            "type": "string",
+            "type": ["string"],
             "filter": true,
             "find": true,
             "sort": true,