diff --git a/PorygonSharp/UserData/UserData.cs b/PorygonSharp/UserData/UserData.cs
index 875753d..81b2e85 100644
--- a/PorygonSharp/UserData/UserData.cs
+++ b/PorygonSharp/UserData/UserData.cs
@@ -15,6 +15,8 @@ namespace PorygonSharp.UserData
         public Type Type { get; }
         private readonly Dictionary<Type, MethodInfo> _implicitCasts;
         private readonly Dictionary<Type, MethodInfo> _explicitCasts;
+        // ReSharper disable once CollectionNeverQueried.Local
+        private readonly List<UserDataBinaryOperation> _binaryOperations = new List<UserDataBinaryOperation>();
 
         private delegate bool IsCastableDelegate(IntPtr scriptType, bool isExplicit);
         private delegate IntPtr CastDelegate(IntPtr obj, IntPtr scriptType);
@@ -216,6 +218,7 @@ namespace PorygonSharp.UserData
         {
             var operation = UserDataBinaryOperation.Create(info);
             AddUserdataBinaryOperation(Id, (byte)kind, operation.Handle);
+            _binaryOperations.Add(operation);
         }
 
         [DllImport("PorygonLang", EntryPoint = "RegisterUserDataField", CallingConvention = CallingConvention.Cdecl)]