diff --git a/Runtime/Scripts/Core/Cluster.cs b/Runtime/Scripts/Core/Cluster.cs
index 0a7c2b3..e200f74 100644
--- a/Runtime/Scripts/Core/Cluster.cs
+++ b/Runtime/Scripts/Core/Cluster.cs
@@ -146,7 +146,7 @@ namespace NanoBrain {
                 Neuron receiver = this.GetNeuron(neuronData.name);
                 foreach (SynapseData synapseData in neuronData.synapses) {
                     Neuron sender = this.GetNeuron(synapseData.neuronName);
-                    sender?.AddReceiver(receiver, synapseData.weight);
+                    sender?.AddReceiver(receiver, synapseData.weight, synapseData.trainable);
                 }
             }
         }
@@ -190,7 +190,7 @@ namespace NanoBrain {
                     }
                     else {
                         Neuron sender = this.GetNeuron(synapseData.neuronName);
-                        sender?.AddReceiver(receiver, synapseData.weight);
+                        sender?.AddReceiver(receiver, synapseData.weight, synapseData.trainable);
                     }
                 }
             }