From 804d6eecea5682de2c15cde257f17a197aba958d Mon Sep 17 00:00:00 2001
From: DiscordLiz <47602820+DiscordLiz@users.noreply.github.com>
Date: Tue, 18 Jun 2019 21:25:49 -0400
Subject: [PATCH] [Core] Fix DictConverterer error handling format (#2776)

---
 redbot/core/commands/converter.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/redbot/core/commands/converter.py b/redbot/core/commands/converter.py
index 26cd67fa1..bb5ce669d 100644
--- a/redbot/core/commands/converter.py
+++ b/redbot/core/commands/converter.py
@@ -184,7 +184,7 @@ class DictConverter(dpy_commands.Converter):
 
         for key in iterator:
             if self.expected_keys and key not in self.expected_keys:
-                raise BadArgument(_("Unexpected key {key}").format(key))
+                raise BadArgument(_("Unexpected key {key}").format(key=key))
 
             ret[key] = next(iterator)