diff --git a/src/plastic_phenopowerlaw.f90 b/src/plastic_phenopowerlaw.f90
index 0a0052dfb..a5c5788c9 100644
--- a/src/plastic_phenopowerlaw.f90
+++ b/src/plastic_phenopowerlaw.f90
@@ -250,6 +250,7 @@ subroutine plastic_phenopowerlaw_init
 !--------------------------------------------------------------------------------------------------
 ! slip-twin related parameters
    slipAndTwinActive: if (prm%totalNslip > 0 .and. prm%totalNtwin > 0) then
+     prm%h0_TwinSlip          = config%getFloat('h0_twinslip')
      prm%interaction_SlipTwin = lattice_interaction_SlipByTwin(prm%Nslip,prm%Ntwin,&
                                                                config%getFloats('interaction_sliptwin'), &
                                                                config%getString('lattice_structure'))