diff --git a/docs/source/advanced/gpu/nvidia/repo/ubuntu.rst b/docs/source/advanced/gpu/nvidia/repo/ubuntu.rst
index ac31ca6dd..96ea8eb95 100644
--- a/docs/source/advanced/gpu/nvidia/repo/ubuntu.rst
+++ b/docs/source/advanced/gpu/nvidia/repo/ubuntu.rst
@@ -9,14 +9,14 @@ Local
 A local package repo will contain all of the CUDA packages.  Extract the CUDA packages into ``/install/cuda-repo/ppc64le``: ::
 
     # For CUDA toolkit: /root/cuda-repo-ubuntu1404-7-5-local_7.5-18_ppc64el.deb
-    
+
     # Create the repo directory under xCAT /install dir
     mkdir -p /install/cuda-repo/ppc64el
 
     # extract the package
     dpkg -x /root/cuda-repo-ubuntu1404-7-5-local_7.5-18_ppc64el.deb /install/cuda-repo/ppc64el
 
-    
+
 
 Network
 -------
@@ -31,7 +31,7 @@ The ``sources.list`` entry may look similar to: ::
 Authorize the CUDA repo
 -----------------------
 
-In order to access the CUDA repository you must import the CUDA GPGKEY into the ``apt_key`` trust list.  xCAT provides a sample postscript ``/install/postscripts/addcudakey`` to help with this task: :: 
+In order to access the CUDA repository you must import the CUDA GPGKEY into the ``apt_key`` trust list.  xCAT provides a sample postscript ``/install/postscripts/addcudakey`` to help with this task: ::
 
    chdef -t node -o <noderange> -p postscripts=addcudakey