diff --git a/clang-tools-extra/clang-tidy/tool/run-clang-tidy.py b/clang-tools-extra/clang-tidy/tool/run-clang-tidy.py
--- a/clang-tools-extra/clang-tidy/tool/run-clang-tidy.py
+++ b/clang-tools-extra/clang-tidy/tool/run-clang-tidy.py
@@ -235,10 +235,10 @@
                       'attempt to find a file named .clang-tidy for '
                       'each source file in its parent directories.')
   group.add_argument('-config-file', default=None,
-                      help='Specify the path of .clang-tidy or custom config'
-                      ' file: e.g. -config-file=/some/path/myTidyConfigFile'
-                      'This option internally works exactly the same way as'
-                      '-config option after reading specified config file.'
+                      help='Specify the path of .clang-tidy or custom config '
+                      'file: e.g. -config-file=/some/path/myTidyConfigFile. '
+                      'This option internally works exactly the same way as '
+                      '-config option after reading specified config file. '
                       'Use either -config-file or -config, not both.')
   parser.add_argument('-header-filter', default=None,
                       help='regular expression matching the names of the '