diff --git a/aider/main.py b/aider/main.py
index 9913c171f..316cfebad 100644
--- a/aider/main.py
+++ b/aider/main.py
@@ -144,6 +144,13 @@ def main(args=None, input=None, output=None):
         dest="dirty_commits",
         help="Disable dirty commit of changes",
     )
+    parser.add_argument(
+        "--completions-height",
+        type=int,
+        default=10,
+        metavar="COMPLETIONS_HEIGHT",
+        help="Set the height of the completions displayed in the terminal (default: 10)",
+    )
     parser.add_argument(
         "--openai-api-key",
         metavar="OPENAI_API_KEY",