diff --git a/gn2pg/store_postgresql.py b/gn2pg/store_postgresql.py
index 99790d8..8f5617a 100644
--- a/gn2pg/store_postgresql.py
+++ b/gn2pg/store_postgresql.py
@@ -287,7 +287,7 @@ def custom_script(self, script: str = "to_gnsynthese") -> None:
         logger.info(_("Start to execute %s script"), script)
         conn = self._db.connect()
         if script == "to_gnsynthese":
-            file = importlib.resources.files(__name__).joinpath("data", "to_gnsynthese.sql")
+            file = importlib.resources.files(__package__).joinpath("data", "to_gnsynthese.sql")
             logger.info(
                 _("You choosed to use internal to_gnsynthese.sql script in schema %s"),
                 self._db_schema,