diff --git a/src/Model/Reservoir/Reservoir.py b/src/Model/Reservoir/Reservoir.py
index 2e7fb9c2..8871f2fa 100644
--- a/src/Model/Reservoir/Reservoir.py
+++ b/src/Model/Reservoir/Reservoir.py
@@ -97,7 +97,7 @@ class Reservoir(SQLSubModel):
                 new_reservoir._node = next(
                     filter(
                         lambda n: n.id == node_id, data["nodes"]
-                    )
+                    ), None
                 )
 
             new_data = []