diff --git a/SavegameToolkit/Types/ArkName.cs b/SavegameToolkit/Types/ArkName.cs
index 36e4d86..313fbc9 100644
--- a/SavegameToolkit/Types/ArkName.cs
+++ b/SavegameToolkit/Types/ArkName.cs
@@ -52,7 +52,7 @@ private ArkName(string name, int instance, string content) {
         public static ArkName From(string name) {
             if (name == null || !nameCache.TryGetValue(name, out ArkName value)) {
                 value = new ArkName(name);
-                nameCache.Add(name, value);
+                nameCache[name] = value;
             }
             return value;
         }