diff --git a/kanken_online/lang.py b/kanken_online/lang.py
index 39f861b..386b236 100644
--- a/kanken_online/lang.py
+++ b/kanken_online/lang.py
@@ -50,6 +50,7 @@ def add_string(string):
 @click.command("set-string")
 @click.argument("lang")
 @click.argument("string")
+@click.argument("value")
 def set_string(lang, string, value):
     """Set the value of a string for a particular language's translation file."""
     path = Path("kanken_online/static/lang", f"{lang}.json")