diff --git a/test/test_gitgutter.vim b/test/test_gitgutter.vim
index 4cf82c5..98b4220 100644
--- a/test/test_gitgutter.vim
+++ b/test/test_gitgutter.vim
@@ -167,6 +167,20 @@ function Test_filename_with_square_brackets()
 endfunction
 
 
+function Test_filename_leading_dash()
+  call system('touch -- -fixture.txt && git add -- -fixture.txt')
+  edit -fixture.txt
+  normal ggo*
+  call s:trigger_gitgutter()
+
+  let expected = [
+        \ 'line=1  id=3000  name=GitGutterLineAdded',
+        \ 'line=2  id=3001  name=GitGutterLineAdded'
+        \ ]
+  call assert_equal(expected, s:signs('-fixture.txt'))
+endfunction
+
+
 " FIXME: this test fails when it is the first (or only) test to be run
 function Test_follow_symlink()
   let tmp = 'symlink'