From 4bdebcd3399816c7a193eadf0fd572785a63ebed Mon Sep 17 00:00:00 2001
From: Tarek <13603398+Taarek@users.noreply.github.com>
Date: Sat, 27 Jun 2020 04:54:02 +0200
Subject: Fix error raised when using the roles parameter.

---
 discord/http.py | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

(limited to 'discord/http.py')

diff --git a/discord/http.py b/discord/http.py
index 46483c04..dba174b6 100644
--- a/discord/http.py
+++ b/discord/http.py
@@ -660,12 +660,12 @@ class HTTPClient:
         return self.request(Route('GET', '/guilds/{guild_id}/members/{member_id}', guild_id=guild_id, member_id=member_id))
 
     def prune_members(self, guild_id, days, compute_prune_count, roles, *, reason=None):
-        params = {
+        payload = {
             'days': days,
             'compute_prune_count': 'true' if compute_prune_count else 'false',
-            'include_roles': roles
+            'include_roles': ', '.join(roles)
         }
-        return self.request(Route('POST', '/guilds/{guild_id}/prune', guild_id=guild_id), params=params, reason=reason)
+        return self.request(Route('POST', '/guilds/{guild_id}/prune', guild_id=guild_id), json=payload, reason=reason)
 
     def estimate_pruned_members(self, guild_id, days):
         params = {
-- 
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