diff --git a/views/search/_catalog_filter.html.erb b/views/search/_catalog_filter.html.erb
index 557841a..04151c5 100644
--- a/views/search/_catalog_filter.html.erb
+++ b/views/search/_catalog_filter.html.erb
@@ -32,7 +32,7 @@
         <%= check_box_tag("include_non_public", true, @include_non_public) %>
         <%= _("Include in results") %>
       </label>
-      <span class"doubts-catalog-software" title="<%= _('Include software development projects that are not yet officially Brazilian Public Software.') %>">?</span>
+      <span class="doubts-catalog-software" title="<%= _('Include software development projects that are not yet officially Brazilian Public Software.') %>">?</span>
     </div>
 
     <br />
--
libgit2 0.21.2