diff --git a/src/MNH/gamma.f90 b/src/MNH/gamma.f90
index d5b65c7f493a976789fd23175c3be8857e2c6828..3ed3ee129554cbce28c4ed3b1189bb2335f4d74c 100644
--- a/src/MNH/gamma.f90
+++ b/src/MNH/gamma.f90
@@ -1,7 +1,8 @@
-!MNH_LIC Copyright 1994-2014 CNRS, Meteo-France and Universite Paul Sabatier
+!MNH_LIC Copyright 1995-2019 CNRS, Meteo-France and Universite Paul Sabatier
 !MNH_LIC This is part of the Meso-NH software governed by the CeCILL-C licence
-!MNH_LIC version 1. See LICENSE, CeCILL-C_V1-en.txt and CeCILL-C_V1-fr.txt  
+!MNH_LIC version 1. See LICENSE, CeCILL-C_V1-en.txt and CeCILL-C_V1-fr.txt
 !MNH_LIC for details. version 1.
+!-----------------------------------------------------------------
 !########################
         MODULE MODI_GAMMA
 !########################
@@ -32,7 +33,6 @@ END MODULE MODI_GAMMA
 !     ######################################
       FUNCTION GAMMA_X0D(PX)  RESULT(PGAMMA)
 !     ######################################
-!$acc routine seq
 !
 !
 !!****  *GAMMA * -  Gamma  function
@@ -76,6 +76,9 @@ USE MODI_BITREP
 #endif
 !
 IMPLICIT NONE
+
+!$acc routine seq
+
 !
 !*       0.1 declarations of arguments and result
 !