From 0bf54fae520fbf083d19c64f067787e986ec087e Mon Sep 17 00:00:00 2001
From: jack1142 <6032823+jack1142@users.noreply.github.com>
Date: Sun, 23 Jun 2019 05:33:27 +0200
Subject: [PATCH] [Admin] Convert set to list because set is not JSON
 serializable (#2792)

---
 redbot/cogs/admin/admin.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/redbot/cogs/admin/admin.py b/redbot/cogs/admin/admin.py
index 4bbc28557..1330fb4fe 100644
--- a/redbot/cogs/admin/admin.py
+++ b/redbot/cogs/admin/admin.py
@@ -315,7 +315,7 @@ class Admin(commands.Cog):
         valid_role_ids = set(r.id for r in valid_roles)
 
         if selfrole_ids != valid_role_ids:
-            await self.conf.guild(guild).selfroles.set(valid_role_ids)
+            await self.conf.guild(guild).selfroles.set(list(valid_role_ids))
 
         # noinspection PyTypeChecker
         return valid_roles