diff --git a/redbot/core/core_commands.py b/redbot/core/core_commands.py
index a90bef4e9..0ac261a07 100644
--- a/redbot/core/core_commands.py
+++ b/redbot/core/core_commands.py
@@ -515,28 +515,25 @@ class Core:
     async def _set(self, ctx):
         """Changes Red's settings"""
         if ctx.invoked_subcommand is None:
-            admin_role_id = await ctx.bot.db.guild(ctx.guild).admin_role()
-            admin_role = discord.utils.get(ctx.guild.roles, id=admin_role_id)
-            mod_role_id = await ctx.bot.db.guild(ctx.guild).mod_role()
-            mod_role = discord.utils.get(ctx.guild.roles, id=mod_role_id)
-            prefixes = await ctx.bot.db.guild(ctx.guild).prefix()
+            if ctx.guild:
+                admin_role_id = await ctx.bot.db.guild(ctx.guild).admin_role()
+                admin_role = discord.utils.get(ctx.guild.roles, id=admin_role_id) or "Not set"
+                mod_role_id = await ctx.bot.db.guild(ctx.guild).mod_role()
+                mod_role = discord.utils.get(ctx.guild.roles, id=mod_role_id) or "Not set"
+                prefixes = await ctx.bot.db.guild(ctx.guild).prefix()
+                guild_settings = f"Admin role: {admin_role}\nMod role: {mod_role}\n"
+            else:
+                guild_settings = ""
             if not prefixes:
                 prefixes = await ctx.bot.db.prefix()
             locale = await ctx.bot.db.locale()
 
+            prefix_string = " ".join(prefixes)
             settings = (
-                "{} Settings:\n\n"
-                "Prefixes: {}\n"
-                "Admin role: {}\n"
-                "Mod role: {}\n"
-                "Locale: {}"
-                "".format(
-                    ctx.bot.user.name,
-                    " ".join(prefixes),
-                    admin_role.name if admin_role else "Not set",
-                    mod_role.name if mod_role else "Not set",
-                    locale,
-                )
+                f"{ctx.bot.user.name} Settings:\n\n"
+                f"Prefixes: {prefix_string}\n"
+                f"{guild_settings}"
+                f"Locale: {locale}"
             )
             await ctx.send(box(settings))
             await ctx.send_help()