diff --git a/coreapi/chat.c b/coreapi/chat.c
index 5a471adb7..bf921ecb3 100644
--- a/coreapi/chat.c
+++ b/coreapi/chat.c
@@ -670,7 +670,6 @@ LinphoneReason linphone_core_message_received(LinphoneCore *lc, SalOp *op, const
 	/* Check if this is a duplicate message */
 	if ((msg = linphone_chat_room_find_message_with_dir(cr, sal_op_get_call_id(op), LinphoneChatMessageIncoming))) {
 		reason = lc->chat_deny_code;
-		linphone_chat_message_unref(msg);
 		goto end;
 	}