diff --git a/sphinx/cmdline.py b/sphinx/cmdline.py
index 590aa8b0a..55b0cec98 100644
--- a/sphinx/cmdline.py
+++ b/sphinx/cmdline.py
@@ -145,7 +145,7 @@ files can be built by specifying individual filenames.
                        'files (default: OUTPUTDIR/.doctrees)')
     group.add_argument('-j', metavar='N', default=1, type=jobs_argument, dest='jobs',
                        help='build in parallel with N processes where '
-                       'possible (special value "auto" will set N to number of CPUs')
+                       'possible (special value "auto" will set N to cpu-count)')
     group = parser.add_argument_group('build configuration options')
     group.add_argument('-c', metavar='PATH', dest='confdir',
                        help='path where configuration file (conf.py) is '