diff --git a/qt/aqt/main.py b/qt/aqt/main.py
index e1d680a4f..60b09a6ad 100644
--- a/qt/aqt/main.py
+++ b/qt/aqt/main.py
@@ -890,6 +890,7 @@ title="%s" %s>%s</button>""" % (
             self.media_syncer.start()
 
         def on_collection_sync_finished():
+            self.col.clearUndo()
             self.reset()
             after_sync()