diff --git a/src/testdir/test_cmdline.vim b/src/testdir/test_cmdline.vim
index 7febc12..27ca8bf 100644
--- a/src/testdir/test_cmdline.vim
+++ b/src/testdir/test_cmdline.vim
@@ -662,6 +662,9 @@
         \ '3match':     'match',
         \ 'aboveleft':  'aboveleft',
         \ 'abo':        'aboveleft',
+        \ 'en':         'endif',
+        \ 'end':        'endif',
+        \ 'endi':        'endif',
         \ 's':          'substitute',
         \ '5s':         'substitute',
         \ ':5s':        'substitute',
diff --git a/src/testdir/test_vim9_builtin.vim b/src/testdir/test_vim9_builtin.vim
index 109cb35..dccd99b 100644
--- a/src/testdir/test_vim9_builtin.vim
+++ b/src/testdir/test_vim9_builtin.vim
@@ -1530,6 +1530,13 @@
   assert_equal('scriptnames', fullcommand('scr'))
   assert_equal('', fullcommand('scg'))
   fullcommand('')->assert_equal('')
+
+  assert_equal('', fullcommand('en'))
+  legacy call assert_equal('endif', fullcommand('en'))
+  assert_equal('endif', fullcommand('en', 0))
+  legacy call assert_equal('endif', fullcommand('en', 0))
+  assert_equal('', fullcommand('en', 1))
+  legacy call assert_equal('', fullcommand('en', 1))
 enddef
 
 def Test_funcref()