diff --git a/HSMensaW_botA.py b/HSMensaW_botA.py
index 76703b7..61807f5 100644
--- a/HSMensaW_botA.py
+++ b/HSMensaW_botA.py
@@ -180,6 +180,15 @@ class HSMensaW(telepot.aio.helper.ChatHandler):
         lang = query_data[:query_data.index("::")]
         chat_id = int(query_data[query_data.index("::") + 2:])
 
+        chat_member = await bot.getChatMember(chat_id=chat_id, user_id=from_id)
+        member_status = chat_member["status"]
+
+        if msg["message"]["chat"]["type"] != "private" and member_status != "creator" and \
+                member_status != "administrator":
+            await bot.answerCallbackQuery(callback_query_id=query_id, text="Keine Berechtigung. Bitten Sie einen "
+                                                                           "Admin, die Sprache zu ändern.")
+            return
+
         name = ""
         user_id = msg["from"]["id"]
         if "first_name" in msg["from"].keys():