diff --git a/i2p2www/__init__.py b/i2p2www/__init__.py
index 1a42cc44b8cca50d5063ea971fee9d5edf7d066f..6c4dd504cbd1ed379e1c4ae79678edefbda70537 100644
--- a/i2p2www/__init__.py
+++ b/i2p2www/__init__.py
@@ -87,6 +87,11 @@ def detect_theme():
         theme = request.cookies['style']
     if 'theme' in request.args.keys():
         theme = request.args['theme']
+        # TEMPORARY: enable external themes
+        # TODO: Remove this (and the corresponding lines in global/layout.html
+        if theme[:7] == 'http://':
+            g.exttheme = theme
+            theme = 'duck'
     if not os.path.isfile(safe_join(safe_join(STATIC_DIR, 'styles'), '%s.css' % theme)):
         theme = 'duck'
     g.theme = theme
diff --git a/i2p2www/pages/global/layout.html b/i2p2www/pages/global/layout.html
index 3d375aa3142f00e4d4fb8687d25c9f065c29b834..3f03fbd384ca88072453d0860608990c844a025e 100644
--- a/i2p2www/pages/global/layout.html
+++ b/i2p2www/pages/global/layout.html
@@ -5,7 +5,9 @@
     <meta charset="UTF-8">
     <title>{% block title_outer %}{% block title %}{% endblock %} - I2P{% endblock %}</title>
     <link rel="canonical" href="{{ canonical() }}" />
+    {% if g.exttheme %}<link rel="stylesheet" type="text/css" href="{{ g.exttheme }}" title="External theme" />{% else -%}
     <link rel="stylesheet" type="text/css" href="{{ url_for('static', filename='styles/' + g.theme + '.css') }}" title="{{ g.theme }}" />
+    {%- endif %}
     <link rel="shortcut icon" type="image/x-icon" href="{{ url_for('static', filename='favicon.ico') }}" />
     <meta name="robots" content="NOODP" />
     {%- block headextra %}{% endblock %}