diff --git a/src/MNH/mesonh.f90 b/src/MNH/mesonh.f90
index 27bd93e2cc2c8f80ad698f4ae9733821ecd29f9d..349c00327c31fb5c287ecca69aeb139c6900d7de 100644
--- a/src/MNH/mesonh.f90
+++ b/src/MNH/mesonh.f90
@@ -132,6 +132,9 @@ INTEGER       :: IINFO_ll                     ! return code of // routines
 !
 !*       1.    INITIALIZATION
 !              --------------
+#ifdef MNH_OPENACC
+  !$acc init
+#endif
 ! Switch to model 1 variables
 #ifndef CPLOASIS
 CALL MPPDB_INIT()