diff --git a/copy_cert.py b/copy_cert.py
index b414329..6bd423e 100644
--- a/copy_cert.py
+++ b/copy_cert.py
@@ -36,7 +36,7 @@ def exec_remote(connection: paramiko.SSHClient, command):
 
 
 if __name__ == "__main__":
-    parser = argparse.ArgumentParser()
+    parser = argparse.ArgumentParser(prefix_chars="*")
     parser.add_argument(
         'cert_path', help="location of the certificate to install")
     parser.add_argument(
@@ -44,7 +44,7 @@ if __name__ == "__main__":
     parser.add_argument(
         'store_path',
         help="directory to store the private key and certificate")
-    parser.add_argument('-d', '--dry', action='store_true')
+    parser.add_argument('*d', '**dry', action='store_true')
     args = parser.parse_args()
     # Connect to host
     router = connection_from_config('router')