diff --git a/comfy_extras/nodes_memory_reserve.py b/comfy_extras/nodes_memory_reserve.py
index 3440287a2..f0e7cbad2 100644
--- a/comfy_extras/nodes_memory_reserve.py
+++ b/comfy_extras/nodes_memory_reserve.py
@@ -19,6 +19,7 @@ class MemoryReserveNode(io.ComfyNode):
 
     @classmethod
     def execute(cls, model: io.Model.Type, memory_reserve_gb: float) -> io.NodeOutput:
+        model = model.clone()
         model.add_model_memory_reserve(memory_reserve_gb)
         return io.NodeOutput(model)