diff --git a/Libraries/Core/Models/Spt/Config/RagfairConfig.cs b/Libraries/Core/Models/Spt/Config/RagfairConfig.cs
index a60e8a16..6db0f17c 100644
--- a/Libraries/Core/Models/Spt/Config/RagfairConfig.cs
+++ b/Libraries/Core/Models/Spt/Config/RagfairConfig.cs
@@ -478,7 +478,7 @@ public record PackDetails
      * item types to allow being a pack
      */
     [JsonPropertyName("itemTypeWhitelist")]
-    public List<string> ItemTypeWhitelist
+    public HashSet<string> ItemTypeWhitelist
     {
         get;
         set;