diff --git a/updog/__main__.py b/updog/__main__.py
index 1b386c0..ec4a98e 100644
--- a/updog/__main__.py
+++ b/updog/__main__.py
@@ -37,6 +37,9 @@ def parse_arguments():
 
     args = parser.parse_args()
 
+    # Normalize the path
+    args.directory = os.path.normpath(args.directory)
+
     return args