diff --git a/src/plastic_phenoplus.f90 b/src/plastic_phenoplus.f90
index 047abe33b..01fa8e8e5 100644
--- a/src/plastic_phenoplus.f90
+++ b/src/plastic_phenoplus.f90
@@ -980,8 +980,9 @@ subroutine plastic_phenoplus_microstructure(orientation,ipc,ip,el,F0,Fe,Fp,Tstar
           ENDIF
         ENDDO LOOPMYNEIGHBORS
 
-      plasticState(ph)%state(index_kappa+me_slip, of) = 1.2_pReal &
-                                                        + 0.2_pReal*ERF(4.0_pReal * maxval(ne_mprimes) - 4.0_pReal)
+      plasticState(ph)%state(index_kappa+me_slip, of) = &
+          1.1_pReal + 0.1_pReal*ERF(4.0_pReal * maxval(ne_mprimes) - 4.0_pReal)
+
       ENDDO LOOPMYSLIP
 
     ENDIF