diff --git a/aider/args.py b/aider/args.py
index 871cbd9c3..f85316927 100644
--- a/aider/args.py
+++ b/aider/args.py
@@ -817,7 +817,10 @@ def get_parser(default_config_files, git_root):
         "--notifications",
         action=argparse.BooleanOptionalAction,
         default=False,
-        help="Enable/disable terminal bell notifications when LLM responses are ready (default: False)",
+        help=(
+            "Enable/disable terminal bell notifications when LLM responses are ready (default:"
+            " False)"
+        ),
     )
     group.add_argument(
         "--notifications-command",
diff --git a/aider/io.py b/aider/io.py
index 6863b41e2..3109cf275 100644
--- a/aider/io.py
+++ b/aider/io.py
@@ -960,6 +960,7 @@ class InputOutput:
             if self.notifications_command:
                 try:
                     import subprocess
+
                     subprocess.run(self.notifications_command, shell=True)
                 except Exception as e:
                     self.tool_warning(f"Failed to run notifications command: {e}")