diff --git a/src/netnode.py b/src/netnode.py
--- a/src/netnode.py
+++ b/src/netnode.py
@@ -71,4 +71,5 @@ class NetNode:
 		log.info("updating hash tree...")
 		self._tree.batch_update(self._new_leaves.items())
 		self._tree.save(self._tree_file)
+		self._new_leaves = dict()
 		log.info("tree updated")