diff --git a/apps/startui.cpp b/apps/startui.cpp
index 7b4ed794..236157b0 100644
--- a/apps/startui.cpp
+++ b/apps/startui.cpp
@@ -86,7 +86,7 @@ Result<int> luna_main(int argc, char** argv)
 
     if (username.is_empty())
     {
-        os::eprintln("error: startui needs a --username parameter to run.");
+        os::eprintln("error: startui needs a --user parameter to run.");
         parser.short_usage(argv[0]);
         return 1;
     }