diff --git a/README.rst b/README.rst
index 7371a11..e068d2c 100644
--- a/README.rst
+++ b/README.rst
@@ -70,15 +70,18 @@ Usage
 ::
 
     $ speedtest-cli -h
-    usage: speedtest-cli [-h] [--share] [--simple] [--list] [--server SERVER]
-                         [--mini MINI] [--source SOURCE] [--version]
-
+    usage: speedtest-cli [-h] [--bytes] [--share] [--simple] [--list]
+                         [--server SERVER] [--mini MINI] [--source SOURCE]
+                         [--version]
+    
     Command line interface for testing internet bandwidth using speedtest.net.
     --------------------------------------------------------------------------
     https://github.com/sivel/speedtest-cli
-
+    
     optional arguments:
       -h, --help       show this help message and exit
+      --bytes          Display values in bytes instead of bits. Does not affect
+                       the image generated by --share
       --share          Generate and provide a URL to the speedtest.net share
                        results image
       --simple         Suppress verbose output, only show basic information