diff --git a/redbot/core/bot.py b/redbot/core/bot.py
index 335bea784..9d2a5e29e 100644
--- a/redbot/core/bot.py
+++ b/redbot/core/bot.py
@@ -294,6 +294,7 @@ class RedBase(commands.GroupMixin, commands.bot.BotBase, RPCMixin):
             if pkg_name.startswith("redbot.cogs."):
                 del sys.modules["redbot.cogs"].__dict__[name]
 
+    @staticmethod
     async def send_filtered(
         destination: discord.abc.Messageable,
         filter_mass_mentions=True,