diff --git a/README.rst b/README.rst
index 5ce93783..0c57bb16 100644
--- a/README.rst
+++ b/README.rst
@@ -380,7 +380,7 @@ Command Line Tool Usage
                                                 reporting the size and the sum.
       -i, --install, [package...]               Installs single or multiple
                                                 Slackware binary packages.
-      -u, --upgrade, [package...]               Upgrade single or multiple Slackware
+      -u, --install-new, [package...]               Upgrade single or multiple Slackware
                                                 binary packages from a older to a
                                                 newer one.
       -o, --reinstall, [package...]             Reinstall signle or multiple