diff --git a/lethe/lethe.py b/lethe/lethe.py
index ebb4415..d2d01d8 100755
--- a/lethe/lethe.py
+++ b/lethe/lethe.py
@@ -7,7 +7,6 @@ from typing import Sequence
 import subprocess
 import tempfile
 import datetime
-import argparse
 from itertools import chain
 
 
@@ -299,7 +298,7 @@ def snap(
             old_base_commit = get_commit(target_base, cwd=cwd)
             if old_base_commit:
                 print(f'Migrating {target_base} to new naming scheme ({target_base}/LEGACY)...')
-                print(f'You may also want to delete refs/lethe/HEAD with `git update-ref -d refs/lethe/HEAD`')
+                print('You may also want to delete refs/lethe/HEAD with `git update-ref -d refs/lethe/HEAD`')
                 _run('git update-ref -d ' + target_base)
                 update_ref(target_base + '/LEGACY', old_base_commit,
                            message='last commit using old refs/lethe/branchname approach')