diff --git a/src/MNH/ini_rain_ice.f90 b/src/MNH/ini_rain_ice.f90
index d8200edbe6da802faa57c592f620033f47ce36fb..3087d54550ae22d661011270e31e2093d3636fe7 100644
--- a/src/MNH/ini_rain_ice.f90
+++ b/src/MNH/ini_rain_ice.f90
@@ -431,6 +431,7 @@ XRTMIN(4) = 1.0E-20
 XRTMIN(5) = 1.0E-15
 XRTMIN(6) = 1.0E-15
 IF (HCLOUD == 'ICE4') XRTMIN(7) = 1.0E-15
+!$acc enter data copyin(XRTMIN)
 !
 XCONC_SEA=1E8 ! 100/cm3
 XCONC_LAND=3E8 ! 300/cm3