diff --git a/aggreg.py b/aggreg.py
index 1630a1d5d4ebf2f60dc4ce1293a6aff43d9f9a61..6fbe0307d3ae5bc6d32c01070b64ee8da6d85a24 100644
--- a/aggreg.py
+++ b/aggreg.py
@@ -57,7 +57,7 @@ def genere_html(liste_evenements: list[dict[str, str]],
 
 def main():
     parser = ArgumentParser(description="obtain events feeds from RSS and compile them into a nice webpage")
-    parser.add_argument("-c", "--config", help="specifies a config path instead of the default config path %(default)", default="/etc/eventswrangler.conf")
+    parser.add_argument("-c", "--config", help="specifies a config path instead of the default config path %(default)s", default="/etc/eventswrangler.conf")
     configpath = parser.parse_args().config
     with open(configpath) as file:
         conf = yaml.safe_load(file)