From a98be21181059402c1759f689b6099c16f4d3552 Mon Sep 17 00:00:00 2001
From: Master Kwoth <nadekodiscordbot@gmail.com>
Date: Fri, 11 Aug 2017 22:53:31 +0200
Subject: [PATCH] small error fix

---
 src/NadekoBot/Modules/Searches/Services/SearchesService.cs | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/NadekoBot/Modules/Searches/Services/SearchesService.cs b/src/NadekoBot/Modules/Searches/Services/SearchesService.cs
index 396937a9..368c5618 100644
--- a/src/NadekoBot/Modules/Searches/Services/SearchesService.cs
+++ b/src/NadekoBot/Modules/Searches/Services/SearchesService.cs
@@ -35,7 +35,7 @@ namespace NadekoBot.Modules.Searches.Services
         public List<WoWJoke> WowJokes { get; } = new List<WoWJoke>();
         public List<MagicItem> MagicItems { get; } = new List<MagicItem>();
 
-        private readonly ConcurrentDictionary<ulong?, SearchImageCacher> _imageCacher = new ConcurrentDictionary<ulong?, SearchImageCacher>();
+        private readonly ConcurrentDictionary<ulong, SearchImageCacher> _imageCacher = new ConcurrentDictionary<ulong, SearchImageCacher>();
 
         private readonly ConcurrentDictionary<ulong, HashSet<string>> _blacklistedTags = new ConcurrentDictionary<ulong, HashSet<string>>();
 
@@ -133,7 +133,7 @@ namespace NadekoBot.Modules.Searches.Services
             {
                 throw new TagBlacklistedException();
             }
-            var cacher = _imageCacher.GetOrAdd(guild, (key) => new SearchImageCacher());
+            var cacher = _imageCacher.GetOrAdd(guild ?? 0, (key) => new SearchImageCacher());
             
             return cacher.GetImage(tag, isExplicit, type);
         }