diff --git a/json-tg.c b/json-tg.c
index cdd42dd..cefb379 100644
--- a/json-tg.c
+++ b/json-tg.c
@@ -431,7 +431,10 @@ json_t *json_pack_message (struct tgl_message *M) {
   }
 
   if (M->reply_id) {
-    assert (json_object_set (res, "reply_id", json_integer (M->reply_id)) >= 0);
+    tgl_message_id_t msg_id = M->permanent_id;
+    msg_id.id = M->reply_id;
+    
+    assert (json_object_set (res, "reply_id", json_string (print_permanent_msg_id (msg_id))) >= 0);
   }
 
   if (M->flags & TGLMF_MENTION) {
diff --git a/lua-tg.c b/lua-tg.c
index 5f430a4..454a0a6 100644
--- a/lua-tg.c
+++ b/lua-tg.c
@@ -482,7 +482,10 @@ void push_message (struct tgl_message *M) {
   }
 
   if (M->reply_id) {
-    lua_add_num_field ("reply_id", M->reply_id);
+    tgl_message_id_t msg_id = M->permanent_id;
+    msg_id.id = M->reply_id;
+    
+    lua_add_string_field ("reply_id", print_permanent_msg_id (msg_id));
   }
 
   if (M->flags & TGLMF_MENTION) {