diff --git a/src/TensorFlowNET.Keras/Saving/KerasObjectLoader.cs b/src/TensorFlowNET.Keras/Saving/KerasObjectLoader.cs
index eb167b94..fffc2bac 100644
--- a/src/TensorFlowNET.Keras/Saving/KerasObjectLoader.cs
+++ b/src/TensorFlowNET.Keras/Saving/KerasObjectLoader.cs
@@ -517,7 +517,7 @@ namespace Tensorflow.Keras.Saving
                     if (obj_metrics.TryGetValue(refer.LocalName, out var metric))
                     {
                         var metric_path = $"{Keras.Saving.SavedModel.Constants.KERAS_ATTR}.layer_metrics.{refer.LocalName}";
-                        children.Add((metric, refer.NodeId, metric_path));
+                        children.Add((metric as Metric, refer.NodeId, metric_path));
                     }
                 }
             }