diff --git a/src/Davidson/u0Hu0.irp.f b/src/Davidson/u0Hu0.irp.f
index 28b74877..a4f415a0 100644
--- a/src/Davidson/u0Hu0.irp.f
+++ b/src/Davidson/u0Hu0.irp.f
@@ -90,7 +90,7 @@ subroutine H_u_0_nstates(v_0,u_0,H_jj,n,keys_tmp,Nint,N_st,sze_8)
   enddo
   !$OMP END DO
 
-  !$OMP DO SCHEDULE(guided)
+  !$OMP DO SCHEDULE(static,1)
   do sh=1,shortcut(0,2)
     do i=shortcut(sh,2),shortcut(sh+1,2)-1
       org_i = sort_idx(i,2)
@@ -123,7 +123,7 @@ subroutine H_u_0_nstates(v_0,u_0,H_jj,n,keys_tmp,Nint,N_st,sze_8)
   enddo
   !$OMP END DO
 
-  !$OMP DO SCHEDULE(guided)
+  !$OMP DO SCHEDULE(static,1)
   do sh=1,shortcut(0,1)
     do sh2=1,shortcut(0,1)
       if (sh==sh2) cycle