diff --git a/README.rst b/README.rst
index c4c082c..938f58b 100644
--- a/README.rst
+++ b/README.rst
@@ -54,7 +54,7 @@ And enable it in Horizon::
 
 To run horizon with the newly enabled Karbor Dashboard plugin run::
 
-    ./run_tests.sh --runserver 0.0.0.0:8080
+    tox -e runserver 0.0.0.0:8080
 
 to have the application start on port 8080 and the horizon dashboard will be
 available in your browser at http://localhost:8080/