diff --git a/src/MNH/modeln.f90 b/src/MNH/modeln.f90
index 2ad2d2e71f9be81df0d1561fe30f6b0e4b99eb1a..8848e9d414206d23bd8ee760e5054c9515f71672 100644
--- a/src/MNH/modeln.f90
+++ b/src/MNH/modeln.f90
@@ -1492,6 +1492,9 @@ XTIME_LES_BU_PROCESS = 0.
 !$acc update device(XUT, XVT, XWT, XRHODJ)
 !
 !
+!$acc data copyin (XTKET, XRSVS_CLD) &
+!$acc &    copy   (XRTKES, XRSVS)    &
+!$acc &    copyout(XRTKEMS)
 CALL ADVECTION_METSV ( TZBAKFILE, GCLOSE_OUT,CUVW_ADV_SCHEME,          &
                  CMET_ADV_SCHEME, CSV_ADV_SCHEME, CCLOUD, NSPLIT,      &
                  LSPLIT_CFL, XSPLIT_CFL, LCFL_WRIT,                    &