diff --git a/protopipe/pipeline/utils.py b/protopipe/pipeline/utils.py
index 199ee81a..4c8ac7c8 100644
--- a/protopipe/pipeline/utils.py
+++ b/protopipe/pipeline/utils.py
@@ -99,6 +99,14 @@ def make_argparser():
         help="give a specific list of files to run on",
     )
 
+    parser.add_argument(
+        "--cam_ids",
+        type=str,
+        default=["LSTCam", "NectarCam"],
+        nargs="*",
+        help="give the specific list of camera types to run on",
+    )
+
     parser.add_argument(
         "--wave_dir",
         type=str,