diff --git a/sonic_package_manager/manager.py b/sonic_package_manager/manager.py
index ba437534edad..6aeb5efd71dc 100644
--- a/sonic_package_manager/manager.py
+++ b/sonic_package_manager/manager.py
@@ -638,6 +638,7 @@ def migrate_package(old_package_entry,
                 with tempfile.NamedTemporaryFile('wb') as file:
                     for chunk in image.save(named=True):
                         file.write(chunk)
+                    file.flush()
 
                     self.install(tarball=file.name)
             else: