Index: DamClients/DamPythonInterface/trunk/src/dampythoninterface/input.py
===================================================================
diff -u -r3491 -r3496
--- DamClients/DamPythonInterface/trunk/src/dampythoninterface/input.py	(.../input.py)	(revision 3491)
+++ DamClients/DamPythonInterface/trunk/src/dampythoninterface/input.py	(.../input.py)	(revision 3496)
@@ -43,7 +43,7 @@
 
     SurfaceLines: List[SurfaceLine] = []
     Soils: List[Soil] = []
-    StabilityParameters: StabilityParameters
+    StabilityParameters: StabilityParameters = StabilityParameters()
     SoilProfiles1D: List[SoilProfile1D] = []
     Segments: List[Segment] = []