Devel timer break autocomplete field

When I try to feel autocomplete field I have this error

Error: missing ) in parenthetical
Source File: http://mysite.com/misc/drupal.js
Line: 131, Column: 32
Source Code:
({ "mytermname": "mytermname" }<div class="dev-timer"> Page execution time was <em>265.44</em> ms. </div>);