diff --git a/docs/cli.rst b/docs/cli.rst
index d569f5586..1c6021bf4 100644
--- a/docs/cli.rst
+++ b/docs/cli.rst
@@ -3,4 +3,4 @@ cwltool Command Line Options
 
 .. autoprogram:: cwltool.argparser:arg_parser()
    :prog: cwltool
-
+   :groups: