diff --git a/src/Core/Tests/TestClass.cs b/src/Core/Tests/TestClass.cs
index 0b4a502..b94b9c7 100644
--- a/src/Core/Tests/TestClass.cs
+++ b/src/Core/Tests/TestClass.cs
@@ -118,7 +118,7 @@ namespace UnityExplorer.Tests
 
             ExplorerCore.Log($"5: Big list");
             for (int i = 0; i < ABigList.Capacity; i++)
-                ABigList[i] = (short)UnityEngine.Random.Range(0, short.MaxValue);
+                ABigList.Add((short)UnityEngine.Random.Range(0, short.MaxValue));
 
             ExplorerCore.Log("Finished TestClass Init_Mono");
         }