diff --git a/plugins/Selectors_CASSD/selectors.irp.f b/plugins/Selectors_CASSD/selectors.irp.f
index 4023d8d6..31a8ab4f 100644
--- a/plugins/Selectors_CASSD/selectors.irp.f
+++ b/plugins/Selectors_CASSD/selectors.irp.f
@@ -23,18 +23,47 @@ END_PROVIDER
   integer                        :: i, k, l, m
   logical                        :: good
 
-  do i=1,N_det
+  do i=1,N_det_generators
     do k=1,N_int
-      psi_selectors(k,1,i) = psi_det_sorted(k,1,i)
-      psi_selectors(k,2,i) = psi_det_sorted(k,2,i)
+      psi_selectors(k,1,i) = psi_det_generators(k,1,i)
+      psi_selectors(k,2,i) = psi_det_generators(k,2,i)
     enddo
   enddo
   do k=1,N_states
-    do i=1,N_det
-      psi_selectors_coef(i,k) = psi_coef_sorted(i,k)
+    do i=1,N_det_generators
+      psi_selectors_coef(i,k) = psi_coef_generators(i,k)
     enddo
   enddo
 
+  m=N_det_generators
+
+  do i=1,N_det
+    do l=1,n_cas_bitmask
+      good = .True.
+      do k=1,N_int
+        good = good .and. (                                         &
+            iand(not(cas_bitmask(k,1,l)), psi_det_sorted(k,1,i)) ==         &
+            iand(not(cas_bitmask(k,1,l)), HF_bitmask(k,1)) .and. (   &
+            iand(not(cas_bitmask(k,2,l)), psi_det_sorted(k,2,i)) ==         &
+            iand(not(cas_bitmask(k,2,l)), HF_bitmask(k,2) )) )
+      enddo
+      if (good) then
+        exit
+      endif
+    enddo
+    if (.not.good) then
+      m = m+1
+      do k=1,N_int
+        psi_selectors(k,1,m) = psi_det_sorted(k,1,i)
+        psi_selectors(k,2,m) = psi_det_sorted(k,2,i)
+      enddo
+      psi_selectors_coef(m,:) = psi_coef_sorted(i,:)
+    endif
+  enddo
+  if (N_det /= m) then
+    print *,  N_det, m
+    stop 'N_det /= m'
+  endif
 END_PROVIDER
 
 BEGIN_PROVIDER [ double precision, psi_selectors_coef_transp, (N_states,psi_selectors_size) ]