diff --git a/docs/protocol/simplex-chat.schema.json b/docs/protocol/simplex-chat.schema.json
index 8a71e715db..a2400e9947 100644
--- a/docs/protocol/simplex-chat.schema.json
+++ b/docs/protocol/simplex-chat.schema.json
@@ -325,9 +325,6 @@
     "introInvitation": {
       "properties": {
         "groupConnReq": {"ref": "connReqUri"}
-      },
-      "optionalProperties": {
-        "directConnReq": {"ref": "connReqUri"}
       }
     },
     "groupMemberRole": {