diff --git a/aider/args.py b/aider/args.py
index 0627b1a66..23983041a 100644
--- a/aider/args.py
+++ b/aider/args.py
@@ -205,6 +205,12 @@ def get_parser(default_config_files, git_root):
         default=True,
         help="Verify the SSL cert when connecting to models (default: True)",
     )
+    group.add_argument(
+        "--timeout",
+        type=float,
+        default=None,
+        help="Timeout in seconds for API calls (default: None)",
+    )
     group.add_argument(
         "--edit-format",
         "--chat-mode",