diff --git a/src/scf_utils/roothaan_hall_scf.irp.f b/src/scf_utils/roothaan_hall_scf.irp.f
index cf006035..730cb496 100644
--- a/src/scf_utils/roothaan_hall_scf.irp.f
+++ b/src/scf_utils/roothaan_hall_scf.irp.f
@@ -199,6 +199,7 @@ END_DOC
   write(6,*)
   if (converged) then
     write(6,*) 'SCF converged'
+    call sleep(1)   ! When too fast, the MOs aren't saved.
   endif