diff --git a/src/testdir/test_winfixbuf.vim b/src/testdir/test_winfixbuf.vim
index 3cec4ed..2d4eaf6 100644
--- a/src/testdir/test_winfixbuf.vim
+++ b/src/testdir/test_winfixbuf.vim
@@ -2545,6 +2545,18 @@
   call assert_equal(l:other, bufnr())
 endfunc
 
+" Allow :pbuffer because, unlike :buffer, it uses a separate window
+func Test_pbuffer()
+  call s:reset_all_buffers()
+
+  let l:other = s:make_buffer_pairs()
+
+  exe 'pbuffer ' . l:other
+
+  execute "normal \<C-w>w"
+  call assert_equal(l:other, bufnr())
+endfunc
+
 " Fail :pop but :pop! is allowed
 func Test_pop()
   call s:reset_all_buffers()