diff --git a/naut.py b/naut.py
index fb6d27b..6101716 100755
--- a/naut.py
+++ b/naut.py
@@ -107,16 +107,22 @@ parser.add_argument(
     "--coordinates",
     nargs=2,
     action="append",
-    help="enter lat and long for home base, defaults to 52.229832 21.011734",
+    help="enter latitude and longitude for home base, defaults to 52.229832 21.011734",
+    metavar=("LAT", "LONG"),
 )
 parser.add_argument(
-    "-t", "--window", type=int, help="set the time window in minutes, defaults to 30"
+    "-t",
+    "--window",
+    type=int,
+    help="set the time window in minutes, defaults to 30",
+    metavar="MINUTES",
 )
 parser.add_argument(
     "-m",
     "--distance",
     type=int,
     help="set the radius from home base in meters, defaults to 4827",
+    metavar="METERS",
 )
 
 args = parser.parse_args()