diff --git a/bin/qp_reset b/bin/qp_reset
index 74dd1f78..d94ab24c 100755
--- a/bin/qp_reset
+++ b/bin/qp_reset
@@ -105,6 +105,7 @@ if [[ $mos -eq 1 ]] ; then
       echo "Warning: You will need to re-define the MO classes"
   fi
   rm --recursive --force -- ${ezfio}/mo_basis
+  rm --recursive --force -- ${ezfio}/bi_ortho_mos
   rm --recursive --force -- ${ezfio}/work/mo_ints_*
 fi