From f563bdbc31cf4465098e65ebeb1768af717a63a1 Mon Sep 17 00:00:00 2001
From: Bogdan <mynameisbogdan@users.noreply.github.com>
Date: Mon, 25 Dec 2023 12:37:33 +0200
Subject: [PATCH] cardigann: fix NullRef for empty release categories

---
 src/Jackett.Common/Indexers/CardigannIndexer.cs | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/Jackett.Common/Indexers/CardigannIndexer.cs b/src/Jackett.Common/Indexers/CardigannIndexer.cs
index 281042fcc..58132950f 100644
--- a/src/Jackett.Common/Indexers/CardigannIndexer.cs
+++ b/src/Jackett.Common/Indexers/CardigannIndexer.cs
@@ -2183,7 +2183,7 @@ namespace Jackett.Common.Indexers
                         else
                             release.Category = release.Category.Union(cats).ToList();
                     }
-                    value = release.Category.ToString() ?? string.Empty;
+                    value = release.Category?.ToString() ?? string.Empty;
                     break;
                 case "categorydesc":
                     if (FieldModifiers.Contains("noappend"))