diff --git a/src/TensorFlowNET.Core/Tensors/Tensor.Creation.cs b/src/TensorFlowNET.Core/Tensors/Tensor.Creation.cs
index efafde27..5fa60eff 100644
--- a/src/TensorFlowNET.Core/Tensors/Tensor.Creation.cs
+++ b/src/TensorFlowNET.Core/Tensors/Tensor.Creation.cs
@@ -664,7 +664,7 @@ namespace Tensorflow
         [MonoPInvokeCallback(typeof(Deallocator))]
         internal static void FreeHGlobalMemory(IntPtr dataPtr, IntPtr len, ref DeallocatorArgs args)
         {
-            if (args.deallocator_called)
+            if (args.deallocator_called || dataPtr == IntPtr.Zero)
                 return;
 
             // NumSharp will dispose