diff --git a/django/contrib/sitemaps/__init__.py b/django/contrib/sitemaps/__init__.py
index f877317..2599b74 100644
--- a/django/contrib/sitemaps/__init__.py
+++ b/django/contrib/sitemaps/__init__.py
@@ -27,8 +27,11 @@ def ping_google(sitemap_url=None, ping_url=PING_URL):
     if sitemap_url is None:
         raise SitemapNotFound("You didn't provide a sitemap_url, and the sitemap URL couldn't be auto-detected.")
 
-    from django.contrib.sites.models import Site
-    current_site = Site.objects.get_current()
+    from django.contrib.sites.models import Site, RequestSite
+    if Site._meta.installed:
+        current_site = Site.objects.get_current()
+    else:
+        current_site = RequestSite(request)
     url = "http://%s%s" % (current_site.domain, sitemap_url)
     params = urllib.urlencode({'sitemap':url})
     urllib.urlopen("%s?%s" % (ping_url, params))
@@ -59,9 +62,12 @@ class Sitemap(object):
         return self._paginator
     paginator = property(_get_paginator)
 
-    def get_urls(self, page=1):
-        from django.contrib.sites.models import Site
-        current_site = Site.objects.get_current()
+    def get_urls(self, request, page=1):
+        from django.contrib.sites.models import Site, RequestSite
+        if Site._meta.installed:
+            current_site = Site.objects.get_current()
+        else:
+            current_site = RequestSite(request)
         urls = []
         for item in self.paginator.page(page).object_list:
             loc = "http://%s%s" % (current_site.domain, self.__get('location', item))
@@ -76,8 +82,11 @@ class Sitemap(object):
 
 class FlatPageSitemap(Sitemap):
     def items(self):
-        from django.contrib.sites.models import Site
-        current_site = Site.objects.get_current()
+        from django.contrib.sites.models import Site, RequestSite
+        if Site._meta.installed:
+            current_site = Site.objects.get_current()
+        else:
+            current_site = RequestSite(request)
         return current_site.flatpage_set.all()
 
 class GenericSitemap(Sitemap):
diff --git a/django/contrib/sitemaps/views.py b/django/contrib/sitemaps/views.py
index 7a5fe38..48ef374 100644
--- a/django/contrib/sitemaps/views.py
+++ b/django/contrib/sitemaps/views.py
@@ -1,12 +1,15 @@
 from django.http import HttpResponse, Http404
 from django.template import loader
-from django.contrib.sites.models import Site
+from django.contrib.sites.models import Site, RequestSite
 from django.core import urlresolvers
 from django.utils.encoding import smart_str
 from django.core.paginator import EmptyPage, PageNotAnInteger
 
 def index(request, sitemaps):
-    current_site = Site.objects.get_current()
+    if Site._meta.installed:
+        current_site = Site.objects.get_current()
+    else:
+        current_site = RequestSite(request)
     sites = []
     protocol = request.is_secure() and 'https' or 'http'
     for section, site in sitemaps.items():
@@ -34,9 +37,9 @@ def sitemap(request, sitemaps, section=None):
     for site in maps:
         try:
             if callable(site):
-                urls.extend(site().get_urls(page))
+                urls.extend(site().get_urls(request, page))
             else:
-                urls.extend(site.get_urls(page))
+                urls.extend(site.get_urls(request, page))
         except EmptyPage:
             raise Http404("Page %s empty" % page)
         except PageNotAnInteger: