diff --git a/src/flowcept/commons/daos/docdb_dao/lmdb_dao.py b/src/flowcept/commons/daos/docdb_dao/lmdb_dao.py
index 476c2dc5..505eb436 100644
--- a/src/flowcept/commons/daos/docdb_dao/lmdb_dao.py
+++ b/src/flowcept/commons/daos/docdb_dao/lmdb_dao.py
@@ -30,6 +30,7 @@ def __new__(cls, *args, **kwargs) -> "LMDBDAO":
 
     def __init__(self):
         if not hasattr(self, "_initialized"):
+            self._initialized = True
             self._open()
 
     def _open(self):