diff --git a/tabellio/searchform/docsearchpfb.pt b/tabellio/searchform/docsearchpfb.pt
index e11c5ad..040a393 100644
--- a/tabellio/searchform/docsearchpfb.pt
+++ b/tabellio/searchform/docsearchpfb.pt
@@ -161,7 +161,7 @@ function setup_appearance(index, elem)
   var dummyinput = $('<input class="dummyinput" type="text" readonly="readonly"/>');
   sync_from_checkboxes(elem, dummyinput);
   dummyinput.click(function() {
-        $(elem).find('div.droppedcheckboxes').toggle();
+        $(elem).find('div.droppedcheckboxes').toggle().parent().toggleClass('openboxes');
   });
   $(elem).find('.fieldErrorBox').after(dummyinput);
   $(elem).find('span.option').wrapAll('<div class="droppedcheckboxes">').click(function() {