diff --git a/docs/source/advanced/networks/onie_switches/os_cumulus/prepare.rst b/docs/source/advanced/networks/onie_switches/os_cumulus/prepare.rst
index 8fbdc1073..e38d97f65 100644
--- a/docs/source/advanced/networks/onie_switches/os_cumulus/prepare.rst
+++ b/docs/source/advanced/networks/onie_switches/os_cumulus/prepare.rst
@@ -1,7 +1,7 @@
 Preparation
 ===========
 
-Prepare the Cumulus Linux files on the xCAT Management Node. 
+Prepare the Cumulus Linux files on the xCAT Management Node.
 
 #. Obtain a valid Cumulus Linux License and download the Cumulus Linux OS installer.
 
@@ -10,18 +10,18 @@ Prepare the Cumulus Linux files on the xCAT Management Node.
     # Create a directory to hold the cumulus linux files
     mkdir -p /install/custom/sw_os/cumulus/
 
-    # copy the license file 
+    # copy the license file
     cp licensefile.txt /install/custom/sw_os/cumulus/
 
-    # copy the installer     
+    # copy the installer
     cp cumulus-linux-3.1.0-bcm-armel.bin /install/custom/sw_os/cumulus/
 
 
-Cumulus osimage 
+Cumulus osimage
 ---------------
 
 xCAT can able to create a cumulus osimage defintion via ``copycds`` command.  ``copycds`` will copy cumulus installer to a destination directory, and create several relevant osimage definitions. **cumulus<release>-<arch>** is the default osimage name. ::
- 
+
     #run copycds command
     # copycds cumulus-linux-3.5.2-bcm-armel.bin