diff --git a/TP-TP-layered-soil-case/TP-TP-layered_soil_pure_dd.py b/TP-TP-layered-soil-case/TP-TP-layered_soil_pure_dd.py
index ba6d3234122a7defbb6b6ca4b7081fc77145229e..39d773565092a49f17a2ee8f3b9f81a50173c993 100755
--- a/TP-TP-layered-soil-case/TP-TP-layered_soil_pure_dd.py
+++ b/TP-TP-layered-soil-case/TP-TP-layered_soil_pure_dd.py
@@ -52,7 +52,7 @@ plot_timestep_every = 1
 number_of_timesteps_to_analyse = 0
 starttime = 0.0
 
-Lw = 0.25 #/timestep_size
+Lw = 0.025 #/timestep_size
 Lnw=Lw
 
 lambda_w = 40