diff --git a/src/MNH/ice4_fast_rg.f90 b/src/MNH/ice4_fast_rg.f90
index 89c209385a171f838715028d53f92d81b214fa35..be6ab1539f6bab4585ad7665a890e31fc58dae48 100644
--- a/src/MNH/ice4_fast_rg.f90
+++ b/src/MNH/ice4_fast_rg.f90
@@ -545,7 +545,8 @@ ELSE
 !$acc kernels
   PRG_TEND(:, IRRDRYG)=0.
 !$acc end kernels
-! acc update host( IGDRY )
+
+!$acc update host( IGDRY )
   !
   IF(IGDRY>0) THEN
     !$acc kernels