diff --git a/docs/source/advanced/probe/index.rst b/docs/source/advanced/probe/index.rst
index 4e6932de7..c77283c3e 100644
--- a/docs/source/advanced/probe/index.rst
+++ b/docs/source/advanced/probe/index.rst
@@ -21,7 +21,7 @@ You can use ``xcatprobe -l`` to list all valid subcommands, output will be as be
    image.rst
    osdeploy.rst
    discovery.rst
-   switch-macmap.rst 
+   switch-macmap.rst
    nodecheck.rst
    osimagecheck.rst