diff --git a/bin/composite_rsr_plot.py b/bin/composite_rsr_plot.py
index 3fc26ac..54ceff0 100644
--- a/bin/composite_rsr_plot.py
+++ b/bin/composite_rsr_plot.py
@@ -105,8 +105,7 @@ def get_arguments():
 
     parser.add_argument("--exclude_bandnames", nargs='*',
                         default=[],
-                        required=False,
-                        help="Sensor band names to exclude from the plot", type=str)
+                        help="Sensor band names to exclude from the plot")
 
     return parser.parse_args()