diff --git a/src/common/nonlocal_potential.f90 b/src/common/nonlocal_potential.f90
index c1a2b7cce..55fda5ddf 100644
--- a/src/common/nonlocal_potential.f90
+++ b/src/common/nonlocal_potential.f90
@@ -708,6 +708,12 @@ subroutine calc_uVpsi_rdivided(nspin,info,ppg,tpsi,uVpsibox,uVpsibox2)
 !$acc end kernels
 #endif
 #else
+#ifdef USE_OPENACC
+!$acc kernels
+uVpsibox2 = dev_uVpsibox2
+uVpsibox = dev_uVpsibox
+!$acc end kernels
+#endif
   call comm_summation(uVpsibox,uVpsibox2,Nlma*Norb,info%icomm_r)
 #endif
   call timer_end(LOG_UHPSI_PSEUDO_COMM)