diff --git a/src/bitmask/bitmasks.irp.f b/src/bitmask/bitmasks.irp.f
index 91617397..27c7dc84 100644
--- a/src/bitmask/bitmasks.irp.f
+++ b/src/bitmask/bitmasks.irp.f
@@ -27,9 +27,7 @@ BEGIN_PROVIDER [ integer(bit_kind), full_ijkl_bitmask, (N_int) ]
     full_ijkl_bitmask(j) = 0_bit_kind
     do i=0,bit_kind_size-1
       k=k+1
-      if (mo_class(k) /= 'Deleted') then
-        full_ijkl_bitmask(j) = ibset(full_ijkl_bitmask(j),i)
-      endif
+      full_ijkl_bitmask(j) = ibset(full_ijkl_bitmask(j),i)
       if (k == mo_num) exit
     enddo
   enddo