diff --git a/xCAT-client/pods/man8/mknb.8.pod b/xCAT-client/pods/man8/mknb.8.pod
index 47ca88c04..063abcbcf 100644
--- a/xCAT-client/pods/man8/mknb.8.pod
+++ b/xCAT-client/pods/man8/mknb.8.pod
@@ -11,8 +11,8 @@ B<mknb> I<arch>
 
 The B<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 
-B<mknb> command yourself.   
+for the same architecture that the management node is.  So you normally do not need to run the
+B<mknb> command yourself.
 
 If you make custom changes to the network boot root image, you will need to run B<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.
 
@@ -32,10 +32,10 @@ The hardware architecture for which to build the boot image.
 
 =over 2
 
-=item 0. 
+=item 0.
 The command completed successfully.
 
-=item 1. 
+=item 1.
 An error has occurred.
 
 =back