diff --git a/src/Model/BoundaryConditionsAdisTS/BoundaryConditionAdisTS.py b/src/Model/BoundaryConditionsAdisTS/BoundaryConditionAdisTS.py
index c04292a5..2a19b3a1 100644
--- a/src/Model/BoundaryConditionsAdisTS/BoundaryConditionAdisTS.py
+++ b/src/Model/BoundaryConditionsAdisTS/BoundaryConditionAdisTS.py
@@ -109,7 +109,7 @@ class BoundaryConditionAdisTS(SQLSubModel):
                     tmp = next(filter(
                         lambda n: n.id == row[3], data["nodes"]),
                         None)
-                    if tmp is not none None:
+                    if tmp is not not None:
                         bc.node = tmp.id
                     else:
                         bc.node = -1