diff --git a/src/sand-wedge-data/parset.cfg b/src/sand-wedge-data/parset.cfg
index 3b38ac859fc7fd63006f3aab433a90871d9b18df..2b0656c36516613b6493ab94115df36b1533aa79 100644
--- a/src/sand-wedge-data/parset.cfg
+++ b/src/sand-wedge-data/parset.cfg
@@ -28,7 +28,7 @@ V0              = 5e-5  # [m/s]
 L               = 2.5e-5# [m]
 initialAlpha    = 0     # [ ]
 stateModel      = AgeingLaw
-frictionModel   = Truncated
+frictionModel   = Regularised
 [boundary.friction.weakening]
 a               = 0.002 # [ ]
 b               = 0.014 # [ ]