1 files changed, 1 insertions, 1 deletions
diff --git a/examples/domrestore.py b/examples/domrestore.py
index 7fd5c8e..3c6b410 100755
--- a/examples/domrestore.py
+++ b/examples/domrestore.py
@@ -7,7 +7,7 @@ import os
 import libxml2
 import pdb
 
-def usage():
+def usage() -> None:
    print('Usage: %s DIR' % sys.argv[0])
    print('       Restore all the domains contained in DIR')
    print('       It is assumed that all files in DIR are')