diff --git a/theme/boost/templates/block_search_forums/search_form.mustache b/theme/boost/templates/block_search_forums/search_form.mustache
index f34e895ff62..79c2e4fdd2c 100644
--- a/theme/boost/templates/block_search_forums/search_form.mustache
+++ b/theme/boost/templates/block_search_forums/search_form.mustache
@@ -6,7 +6,6 @@
             <input id="searchform_search" name="search" type="text" class="form-control" size="10">
         </div>
         <button class="btn btn-secondary" id="searchform_button" type="submit">{{#str}}go{{/str}}</button>
-        </fieldset>
     </form>
     <div class="m-t-1">
         <a href="{{advancedsearchurl}}">{{#str}}advancedsearch, block_search_forums{{/str}}</a>