diff --git a/oml/tasks.py b/oml/tasks.py
index 3f97379..93d3b45 100644
--- a/oml/tasks.py
+++ b/oml/tasks.py
@@ -36,7 +36,10 @@ class Tasks(Thread):
 
     def run(self):
         self.load_tasks()
-        self.queue('scan')
+        if time.mktime(time.gmtime()) - settings.server.get('last_scan', 0) > 24*60*60:
+            settings.server['last_scan'] = time.mktime(time.gmtime())
+            self.queue('scan')
+
         import item.scan
         from item.models import sync_metadata, get_preview, get_cover
         from user.models import (