diff --git a/django_markdown/templates/django_markdown/editor_init.html b/django_markdown/templates/django_markdown/editor_init.html
index 5c8ff7a..dfcd6e3 100644
--- a/django_markdown/templates/django_markdown/editor_init.html
+++ b/django_markdown/templates/django_markdown/editor_init.html
@@ -4,7 +4,7 @@
         $("{{ selector }}").each(function (k, el) {
             var el = $(el);
             if(!el.hasClass("markItUpEditor")) el.markItUp(
-                mySettings, {{ extra_settings|default:"{}" }});
+                mySettings, {{ extra_settings|default:"{}"|safe }});
         });
     });
 })(jQuery);
diff --git a/django_markdown/urls.py b/django_markdown/urls.py
index ca80d4b..f942283 100644
--- a/django_markdown/urls.py
+++ b/django_markdown/urls.py
@@ -1,8 +1,9 @@
 """ Define preview URL. """
 
-from django.conf.urls import patterns, url
+from django.conf.urls import url
 
 from .views import preview
 
-urlpatterns = patterns(
-    '', url('preview/$', preview, name='django_markdown_preview'))
+urlpatterns = [
+    url('preview/$', preview, name='django_markdown_preview')
+]