From dc0c8e30881b5b552ac0955b76e194d050565704 Mon Sep 17 00:00:00 2001
From: Master Kwoth <nadekodiscordbot@gmail.com>
Date: Thu, 16 Nov 2017 15:55:00 +0100
Subject: [PATCH] Fixed .defprefix, closes #1837

---
 NadekoBot.Core/Modules/Administration/PrefixCommands.cs | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/NadekoBot.Core/Modules/Administration/PrefixCommands.cs b/NadekoBot.Core/Modules/Administration/PrefixCommands.cs
index 617ebc30..c8a981b2 100644
--- a/NadekoBot.Core/Modules/Administration/PrefixCommands.cs
+++ b/NadekoBot.Core/Modules/Administration/PrefixCommands.cs
@@ -35,7 +35,7 @@ namespace NadekoBot.Modules.Administration
 
             [NadekoCommand, Usage, Description, Aliases]
             [OwnerOnly]
-            public async Task DefPrefix([Remainder]string prefix)
+            public async Task DefPrefix([Remainder]string prefix = null)
             {
                 if (string.IsNullOrWhiteSpace(prefix))
                 {