diff --git a/adminsortable/admin.py b/adminsortable/admin.py
index 76d0ce0..9e23991 100644
--- a/adminsortable/admin.py
+++ b/adminsortable/admin.py
@@ -116,7 +116,6 @@ class SortableAdmin(SortableAdminBase, ModelAdmin):
         """
         # get sort group index from querystring if present
         sort_filter_index = request.GET.get('sort_filter')
-        filter_expression = request.GET.get('filter_expression')
 
         filters = {}
 
@@ -126,10 +125,9 @@ class SortableAdmin(SortableAdminBase, ModelAdmin):
             except (IndexError, ValueError):
                 pass
 
-        if filter_expression:
-            filters.update(
-                dict([filter_expression.split('=')])
-            )
+        # apply any filters via the querystring
+        for k, v in request.GET.items():
+            filters.update({ k: v })
 
         # Apply any sort filters to create a subset of sortable objects
         return self.get_queryset(request).filter(**filters)
diff --git a/adminsortable/templates/adminsortable/change_list_with_sort_link.html b/adminsortable/templates/adminsortable/change_list_with_sort_link.html
index 97885ae..430c646 100644
--- a/adminsortable/templates/adminsortable/change_list_with_sort_link.html
+++ b/adminsortable/templates/adminsortable/change_list_with_sort_link.html
@@ -10,7 +10,7 @@
             var urlParts = url.split('?');
 
             if (urlParts.length === 2 && urlParts[1].substr(0, 2) !== 'q=') {
-                $('a#change-order').attr('href', './sort/?filter_expression=' + urlParts[1]);
+                $('a#change-order').attr('href', './sort/?' + urlParts[1]);
             }
         });
     })(django.jQuery);