diff --git a/antisticker.py b/antisticker.py
index 0866792..c116706 100644
--- a/antisticker.py
+++ b/antisticker.py
@@ -20,8 +20,11 @@ async def auto_remove_sticker(context):
         if context.chat_id > 0:
             return
         if context.sender:
-            if context.sender.bot:
-                return
+            try:
+                if context.sender.bot:
+                    return
+            except AttributeError:
+                pass
     else:
         return
 
diff --git a/list.json b/list.json
index 755dbcd..896df64 100644
--- a/list.json
+++ b/list.json
@@ -752,7 +752,7 @@
         },
         {
             "name": "antisticker",
-            "version": "1.01",
+            "version": "1.011",
             "section": "chat",
             "maintainer": "xtaodada",
             "size": "0.7 kb",