diff --git a/src/Site/SiteManager.py b/src/Site/SiteManager.py
index cf9be241..4159ba9d 100644
--- a/src/Site/SiteManager.py
+++ b/src/Site/SiteManager.py
@@ -46,9 +46,10 @@ class SiteManager(object):
                 self.log.debug("Removed site: %s" % address)
 
         # Remove orpan sites from contentdb
-        for row in ContentDb.content_db.execute("SELECT * FROM site WHERE ?", {"not__address": self.sites.keys()}):
-            self.log.info("Deleting orphan site from content.db: %s" % row["address"])
-            ContentDb.content_db.deleteSite(row["address"])
+        for row in ContentDb.getContentDb().execute("SELECT * FROM site"):
+            if row["address"] not in self.sites:
+                self.log.info("Deleting orphan site from content.db: %s" % row["address"])
+                ContentDb.getContentDb().deleteSite(row["address"])
 
         if added:
             self.log.debug("SiteManager added %s sites" % added)