diff --git a/redbot/cogs/mod/mod.py b/redbot/cogs/mod/mod.py
index c2b0211a6..5160d2352 100644
--- a/redbot/cogs/mod/mod.py
+++ b/redbot/cogs/mod/mod.py
@@ -877,7 +877,7 @@ class Mod(commands.Cog):
 
     @commands.group()
     @commands.guild_only()
-    @checks.mod_or_permissions(manage_channel=True)
+    @checks.mod_or_permissions(manage_channels=True)
     async def mute(self, ctx: commands.Context):
         """Mute users."""
         pass
@@ -1033,7 +1033,7 @@ class Mod(commands.Cog):
     @commands.group()
     @commands.guild_only()
     @commands.bot_has_permissions(manage_roles=True)
-    @checks.mod_or_permissions(manage_channel=True)
+    @checks.mod_or_permissions(manage_channels=True)
     async def unmute(self, ctx: commands.Context):
         """Unmute users."""
         pass
diff --git a/redbot/core/core_commands.py b/redbot/core/core_commands.py
index a37e72f62..011ee0d92 100644
--- a/redbot/core/core_commands.py
+++ b/redbot/core/core_commands.py
@@ -1698,7 +1698,7 @@ class Core(commands.Cog, CoreLogic):
         await ctx.tick()
 
     @commands.guild_only()
-    @checks.guildowner_or_permissions(manage_server=True)
+    @checks.guildowner_or_permissions(manage_guild=True)
     @commands.group(name="autoimmune")
     async def autoimmune_group(self, ctx: commands.Context):
         """