diff --git a/src/testdir/test_winfixbuf.vim b/src/testdir/test_winfixbuf.vim
index f800338..3cec4ed 100644
--- a/src/testdir/test_winfixbuf.vim
+++ b/src/testdir/test_winfixbuf.vim
@@ -2934,6 +2934,7 @@
         \ "Xtags", 'D')
   call writefile(["one", "two", "three"], "Xfile", 'D')
   call writefile(["one"], "Xother", 'D')
+  tag one
   edit Xother
 
   set winfixbuf