diff --git a/src/MNH/default_desfmn.f90 b/src/MNH/default_desfmn.f90
index a6f463fda595639df6763d46b1cc1fda568d3f66..783bad812b268012a3888a4a6089814fb275244e 100644
--- a/src/MNH/default_desfmn.f90
+++ b/src/MNH/default_desfmn.f90
@@ -996,7 +996,7 @@ ENDIF
 !                ----------------------------------------
 !
 IF (KMI == 1) THEN
-   LPTSPLIT     = .FALSE.
+   LPTSPLIT     = .TRUE.
    L_LFEEDBACKT = .TRUE.
    L_NMAXITER   = 1
    L_XMRSTEP    = 0.