forgot a '

client/components/sidebar/sidebarFilters.jade

@@ -56,7 +56,7 @@ template(name="filterSidebar")
           if Filter.customFields.isSelected _id
               i.fa.fa-check
   hr
-  span {{_ 'advanced-filter-label}}
+  span {{_ 'advanced-filter-label'}}
   input.js-field-advanced-filter(type="text")
   span {{_ 'advanced-filter-description'}}
   if Filter.isActive