diff --git a/redbot/cogs/mutes/mutes.py b/redbot/cogs/mutes/mutes.py
index b12a72bb1..ce30709f4 100644
--- a/redbot/cogs/mutes/mutes.py
+++ b/redbot/cogs/mutes/mutes.py
@@ -148,25 +148,34 @@ class Mutes(VoiceMutes, commands.Cog, metaclass=CompositeMetaClass):
         schema_version = await self.config.schema_version()
 
         if schema_version == 0:
-            start = datetime.now()
-            log.info("Config conversion to schema_version 1 started.")
-            all_channels = await self.config.all_channels()
-            async for channel_id in AsyncIter(all_channels.keys()):
-                try:
-                    if (channel := self.bot.get_channel(channel_id)) is None:
-                        channel = await self.bot.fetch_channel(channel_id)
-                    async with self.config.channel_from_id(channel_id) as muted_users:
-                        for user_id, mute_data in muted_users.items():
-                            mute_data["guild"] = channel.guild.id
-                except (discord.NotFound, discord.Forbidden):
-                    await self.config.channel_from_id(channel_id).clear()
-
+            await self._schema_0_to_1()
             schema_version += 1
             await self.config.schema_version.set(schema_version)
-            log.info(
-                "Config conversion to schema_version 1 done. It took %s to proceed.",
-                datetime.now() - start,
-            )
+
+    async def _schema_0_to_1(self):
+        """This contains conversion that adds guild ID to channel mutes data."""
+        all_channels = await self.config.all_channels()
+        if not all_channels:
+            return
+
+        start = datetime.now()
+        log.info(
+            "Config conversion to schema_version 1 started. This may take a while to proceed..."
+        )
+        async for channel_id in AsyncIter(all_channels.keys()):
+            try:
+                if (channel := self.bot.get_channel(channel_id)) is None:
+                    channel = await self.bot.fetch_channel(channel_id)
+                async with self.config.channel_from_id(channel_id).muted_users() as muted_users:
+                    for mute_id, mute_data in muted_users.items():
+                        mute_data["guild"] = channel.guild.id
+            except (discord.NotFound, discord.Forbidden):
+                await self.config.channel_from_id(channel_id).clear()
+
+        log.info(
+            "Config conversion to schema_version 1 done. It took %s to proceed.",
+            datetime.now() - start,
+        )
 
     async def cog_before_invoke(self, ctx: commands.Context):
         await self._ready.wait()