diff --git a/extensions/extension.py b/extensions/extension.py
index be97d44..cad55bb 100644
--- a/extensions/extension.py
+++ b/extensions/extension.py
@@ -55,7 +55,8 @@ class Extension(commands.Cog):
 
     @commands.Cog.listener()
     async def on_command_error(self, ctx: commands.Context, error):
-        if ctx.invoked_with == extension_name:
+        if ctx.invoked_with == extension_name or \
+                (ctx.command.root_parent is not None and ctx.command.root_parent.name == extension_name):
             if isinstance(error, NotOwner):
                 await ctx.message.add_reaction("\u274C")
             elif isinstance(error, CommandNotFound):
diff --git a/extensions/purge.py b/extensions/purge.py
index aa43ab9..0b64a35 100644
--- a/extensions/purge.py
+++ b/extensions/purge.py
@@ -58,7 +58,8 @@ class Purge(commands.Cog):
 
     @commands.Cog.listener()
     async def on_command_error(self, ctx: commands.Context, error):
-        if ctx.invoked_with == extension_name:
+        if ctx.invoked_with == extension_name or \
+                (ctx.command.root_parent is not None and ctx.command.root_parent.name == extension_name):
             if isinstance(error, CommandNotFound):
                 await ctx.message.add_reaction("\u2753")
             else: