diff --git a/sigi/apps/metas/templates/metas/openmap.html b/sigi/apps/metas/templates/metas/openmap.html
index 067cbd1..20987d0 100644
--- a/sigi/apps/metas/templates/metas/openmap.html
+++ b/sigi/apps/metas/templates/metas/openmap.html
@@ -46,7 +46,7 @@
       <a href="#" style="float: right;" id="options-toggler" type="button" data-toggle="collapse" data-target="#filterbox" aria-expanded="false" aria-controls="collapseExample">
         <span class="glyphicon glyphicon-chevron-right"></span>
       </a>
-      <div class="collapse" id="filterbox">
+      <div class="collapse in" id="filterbox">
         <form id="searchform" class="form-inline ui-front">
           <input type="text" id="search-text" class="form-control" placeholder="Procurar" aria-label="Procurar" aria-describedby="basic-addon2">
         </form>