diff --git a/docs/source/guides/install-guides/yum/manual_install.rst b/docs/source/guides/install-guides/yum/manual_install.rst
index 0f048e5f0..956f5650c 100644
--- a/docs/source/guides/install-guides/yum/manual_install.rst
+++ b/docs/source/guides/install-guides/yum/manual_install.rst
@@ -3,7 +3,7 @@ Manual Install Using Software Repositories
 
 .. include:: ../common_sections.rst
    :start-after: BEGIN_install_xcat_introduction
-   :end-before: END_install_xcat_introduction 
+   :end-before: END_install_xcat_introduction
 
 xCAT is installed by configuring software repositories for ``xcat-core`` and ``xcat-dep`` and using yum package manager.  The repositories can be publicly hosted or locally hosted.