diff --git a/src/MNH/ice4_fast_rg.f90 b/src/MNH/ice4_fast_rg.f90
index 7cee4149786eeb5204ff2b573215722a7de89ea7..1c381e90740d1f992fa694128693b34e335ca39b 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