diff --git a/etiquette/objects.py b/etiquette/objects.py
index 43d766e..d2ca3ef 100644
--- a/etiquette/objects.py
+++ b/etiquette/objects.py
@@ -1155,11 +1155,6 @@ class Photo(ObjectBase):
 
         self.__reinit__()
 
-    def sorted_tags(self):
-        tags = self.get_tags()
-        tags.sort(key=lambda x: x.qualified_name())
-        return tags
-
 
 class Tag(ObjectBase, GroupableMixin):
     '''
diff --git a/frontends/etiquette_flask/etiquette_flask/common.py b/frontends/etiquette_flask/etiquette_flask/common.py
index d3e5bf3..b6aa751 100644
--- a/frontends/etiquette_flask/etiquette_flask/common.py
+++ b/frontends/etiquette_flask/etiquette_flask/common.py
@@ -34,6 +34,7 @@ site.jinja_env.trim_blocks = True
 site.jinja_env.lstrip_blocks = True
 site.jinja_env.filters['bytestring'] = jinja_filters.bytestring
 site.jinja_env.filters['file_link'] = jinja_filters.file_link
+site.jinja_env.filters['sort_by_qualname'] = jinja_filters.sort_by_qualname
 site.debug = True
 
 P = etiquette.photodb.PhotoDB()
diff --git a/frontends/etiquette_flask/etiquette_flask/jinja_filters.py b/frontends/etiquette_flask/etiquette_flask/jinja_filters.py
index 63deaa6..15d0465 100644
--- a/frontends/etiquette_flask/etiquette_flask/jinja_filters.py
+++ b/frontends/etiquette_flask/etiquette_flask/jinja_filters.py
@@ -14,3 +14,7 @@ def file_link(photo, short=False):
         return f'/file/{photo.id}{photo.dot_extension}'
     basename = jinja2.filters.do_urlencode(photo.basename)
     return f'/file/{photo.id}/{basename}'
+
+def sort_by_qualname(tags):
+    tags = sorted(tags, key=lambda x: x.qualified_name())
+    return tags
diff --git a/frontends/etiquette_flask/templates/photo.html b/frontends/etiquette_flask/templates/photo.html
index 6d7b197..1e9c73c 100644
--- a/frontends/etiquette_flask/templates/photo.html
+++ b/frontends/etiquette_flask/templates/photo.html
@@ -163,7 +163,7 @@
                 <input id="add_tag_textbox" type="text" autofocus>
                 <button id="add_tag_button" class="green_button" onclick="submit_tag(receive_callback);">add</button>
             </li>
-            {% set tags = photo.sorted_tags() %}
+            {% set tags = photo.get_tags()|sort_by_qualname %}
             {% for tag in tags %}
             <li>
                 {{tag_object.tag_object(tag, qualified_name=True, max_len=30, with_alt_description=True, with_alt_qualified_name=True)}}<!--