diff --git a/copyparty/up2k.py b/copyparty/up2k.py
index 76a28ef0..45394676 100644
--- a/copyparty/up2k.py
+++ b/copyparty/up2k.py
@@ -561,7 +561,7 @@ class Up2k(object):
 
     def _snapshot(self):
         persist_interval = 30  # persist unfinished uploads index every 30 sec
-        discard_interval = 3600  # drop unfinished uploads after 1 hour inactivity
+        discard_interval = 21600  # drop unfinished uploads after 6 hours inactivity
         prev = {}
         while True:
             time.sleep(persist_interval)