diff --git a/src/MNH/default_desfmn.f90 b/src/MNH/default_desfmn.f90
index 5829879d86d44b19a3012a016c9c9afc8962787b..0b4de6d6fe7162213d718f2f7598431b4221ab89 100644
--- a/src/MNH/default_desfmn.f90
+++ b/src/MNH/default_desfmn.f90
@@ -1002,7 +1002,7 @@ IF (KMI == 1) THEN
    L_LFEEDBACKT = .TRUE.
    L_NMAXITER   = 5
    L_XMRSTEP    = 0.005
-   L_XTSTEP_TS  = 0.
+   L_XTSTEP_TS  = 20.
 !
    YNUC    = 1.0
    YALPHAC = 3.0