diff --git a/hypermap/aggregator/templates/aggregator/search.html b/hypermap/aggregator/templates/aggregator/search.html
index 0a9463d..2fd0eb8 100644
--- a/hypermap/aggregator/templates/aggregator/search.html
+++ b/hypermap/aggregator/templates/aggregator/search.html
@@ -119,15 +119,15 @@
   </div>
 
   <ul class="pagination">
-    <li><a href="?page=1">(1/{{ services.paginator.num_pages }}) &laquo;&laquo;&laquo;</a></li>
+    <li><a href="?page=1{% if filter_by %}&filter_by={{ filter_by }}{% endif %}">(1/{{ services.paginator.num_pages }}) &laquo;&laquo;&laquo;</a></li>
     {% for i in services.paginator.page_range %}
       {% if services.number == i %}
         <li class="active"><span>{{ i }} <span class="sr-only">(current)</span></span></li>
       {% else %}
-        <li><a href="?page={{ i }}">{{ i }}</a></li>
+        <li><a href="?page={{ i }}{% if filter_by %}&filter_by={{ filter_by }}{% endif %}">{{ i }}</a></li>
       {% endif %}
     {% endfor %}
-    <li><a href="?page={{ services.paginator.num_pages }}">&raquo;&raquo;&raquo; ({{ services.paginator.num_pages }}/{{ services.paginator.num_pages }})</a></li>
+    <li><a href="?page={{ services.paginator.num_pages }}{% if filter_by %}&filter_by={{ filter_by }}{% endif %}">&raquo;&raquo;&raquo; ({{ services.paginator.num_pages }}/{{ services.paginator.num_pages }})</a></li>
   </ul>
 
   {% else %}
diff --git a/hypermap/aggregator/views.py b/hypermap/aggregator/views.py
index 2775a45..5fe8653 100644
--- a/hypermap/aggregator/views.py
+++ b/hypermap/aggregator/views.py
@@ -136,7 +136,8 @@ def index(request, catalog_slug=None):
         'types_list': types_list,
         'layers_count': layers_count,
         'services_count': services_count,
-        'catalogs': Catalog.objects.filter(url__isnull=False)
+        'catalogs': Catalog.objects.filter(url__isnull=False),
+        'filter_by': filter_by,
     })
     return HttpResponse(template.render(context))