diff --git a/docs/source/guides/admin-guides/references/man8/mknb.8.rst b/docs/source/guides/admin-guides/references/man8/mknb.8.rst
index 119a369ef..174e140a8 100644
--- a/docs/source/guides/admin-guides/references/man8/mknb.8.rst
+++ b/docs/source/guides/admin-guides/references/man8/mknb.8.rst
@@ -19,7 +19,7 @@ SYNOPSIS
 ********
 
 
-\ **mknb**\  \ *arch*\ 
+\ **mknb**\  \ *arch*\
 
 
 ***********
@@ -29,7 +29,7 @@ DESCRIPTION
 
 The \ **mknb**\  command is run by xCAT automatically when xCAT is installed on the management node.
 It creates a network boot root image (used for node discovery, BMC programming, and flashing)
-for the same architecture that the management node is.  So you normally do not need to run the 
+for the same architecture that the management node is.  So you normally do not need to run the
 \ **mknb**\  command yourself.
 
 If you make custom changes to the network boot root image, you will need to run \ **mknb**\  again to regenerate the diskless image to include your changes.  If you have an xCAT Hierarchical Cluster with Service Nodes having local /tftpboot directories (site.sharedtftp=0), you will need to copy the generated root image to each Service Node.
@@ -43,10 +43,10 @@ OPTIONS
 
 
 
-\ *arch*\ 
- 
+\ *arch*\
+
  The hardware architecture for which to build the boot image.
- 
+