diff --git a/management/backup.py b/management/backup.py
index 42621820..d06a6c8a 100755
--- a/management/backup.py
+++ b/management/backup.py
@@ -600,8 +600,7 @@ def get_backup_config(env, for_save=False, for_ui=False):
 	# authentication details. The user will have to re-enter it.
 	if for_ui:
 		for field in ("target_user", "target_pass"):
-			if field in config:
-				del config[field]
+			config.pop(field, None)
 
 	# helper fields for the admin
 	config["file_target_directory"] = os.path.join(backup_root, 'encrypted')