diff --git a/modules/core/su_utils.py b/modules/core/su_utils.py
index 7a0d0707..1377b96d 100644
--- a/modules/core/su_utils.py
+++ b/modules/core/su_utils.py
@@ -197,7 +197,7 @@ async def _(msg: Bot.MessageSession, user: str):
         await msg.finish(msg.locale.t("core.message.abuse.unban.success", user=user))
 
 
-@ae.command('block <target>')
+@ae.command('block <target>', available_for='QQ|Group')
 async def _(msg: Bot.MessageSession, target: str):
     if not target.startswith(f'{msg.target.target_from}|'):
         await msg.finish(msg.locale.t("message.id.invalid.target", target=msg.target.target_from))
@@ -207,7 +207,7 @@ async def _(msg: Bot.MessageSession, target: str):
         await msg.finish(msg.locale.t("core.message.abuse.block.success", target=target))
 
 
-@ae.command('unblock <target>')
+@ae.command('unblock <target>', available_for='QQ|Group')
 async def _(msg: Bot.MessageSession, target: str):
     if not target.startswith(f'{msg.target.target_from}|'):
         await msg.finish(msg.locale.t("message.id.invalid.target", target=msg.target.target_from))