diff --git a/tailbone/views/batch.py b/tailbone/views/batch.py
index 68715341..890e05a1 100644
--- a/tailbone/views/batch.py
+++ b/tailbone/views/batch.py
@@ -700,7 +700,7 @@ class BatchCrud(BaseCrud):
         else:
             if result:
                 batch.executed = datetime.datetime.utcnow()
-                batch.executed_by = self.request.user
+                batch.executed_by = session.merge(self.request.user)
                 session.commit()
             else:
                 session.rollback()