diff --git a/src/MNH/turb_ver_thermo_flux.f90 b/src/MNH/turb_ver_thermo_flux.f90
index 0e403966ddf4f7b8453e0af539d939436518eea2..f8841cdb4cf76faec685055ea7f004af71e13645 100644
--- a/src/MNH/turb_ver_thermo_flux.f90
+++ b/src/MNH/turb_ver_thermo_flux.f90
@@ -1119,6 +1119,7 @@ IF ( KRRL >= 1 ) THEN
 #else
 !$acc kernels 
 #endif
+    !dir$ concurrent 
     ZTMP1_DEVICE(:,:,:) = PRHODJ(:,:,:) * PATHETA(:,:,:) * 2. * PSRCM(:,:,:)
     ZTMP2_DEVICE(:,:,:) = ZFLXZ(:,:,:) / PDZZ(:,:,:)
 !$acc end kernels