diff --git a/src/nvim/insexpand.c b/src/nvim/insexpand.c
index 7167033e0d..7b71467a22 100644
--- a/src/nvim/insexpand.c
+++ b/src/nvim/insexpand.c
@@ -1330,7 +1330,7 @@ static int cp_compare_nearest(const void *a, const void *b)
 {
   int score_a = ((compl_T *)a)->cp_score;
   int score_b = ((compl_T *)b)->cp_score;
-  if (score_a < 0 || score_b < 0) {
+  if (score_a == 0 || score_b == 0) {
     return 0;
   }
   return (score_a > score_b) ? 1 : (score_a < score_b) ? -1 : 0;
diff --git a/test/old/testdir/test_ins_complete.vim b/test/old/testdir/test_ins_complete.vim
index f2a099fa88..f537a68dfb 100644
--- a/test/old/testdir/test_ins_complete.vim
+++ b/test/old/testdir/test_ins_complete.vim
@@ -4573,6 +4573,22 @@ func Test_nearest_cpt_option()
   exe "normal! of\<c-n>\<c-r>=PrintMenuWords()\<cr>"
   call assert_equal('f{''matches'': [''foo1'', ''foo3'', ''foo2''], ''selected'': -1}', getline(2))
 
+  " Multiple sources
+  func F1(findstart, base)
+    if a:findstart
+      return col('.') - 1
+    endif
+    return ['foo4', 'foo5']
+  endfunc
+  %d
+  set complete+=FF1
+  call setline(1, ["foo1", "foo2", "bar1", "foo3"])
+  exe "normal! 2jof\<c-n>\<c-r>=PrintMenuWords()\<cr>"
+  call assert_equal('f{''matches'': [''foo3'', ''foo2'', ''foo1'', ''foo4'', ''foo5''],
+        \ ''selected'': -1}', getline(4))
+  set complete-=FF1
+  delfunc F1
+
   set completeopt=menu,longest,nearest
   %d
   call setline(1, ["fo", "foo", "foobar", "foobarbaz"])