diff --git a/acto/__main__.py b/acto/__main__.py
index 94858e7d18..0ca73a0166 100644
--- a/acto/__main__.py
+++ b/acto/__main__.py
@@ -55,7 +55,6 @@
     "--helper_crd",
     dest="helper_crd",
     type=str,
-    default="",
     help="helper crd file to test on",
 )
 parser.add_argument(