diff --git a/README.md b/README.md
index 7288f4dd3..232cc2205 100644
--- a/README.md
+++ b/README.md
@@ -84,6 +84,7 @@ which means you can modify it, redistribute it or use it however you like.
                                file modification time
     --write-description        write video description to a .description file
     --write-info-json          write video metadata to a .info.json file
+    --write-thumbnail          write thumbnail image to disk
 
 ## Verbosity / Simulation Options:
     -q, --quiet                activates quiet mode
diff --git a/youtube_dl/version.py b/youtube_dl/version.py
index 26d56abc4..f8316b801 100644
--- a/youtube_dl/version.py
+++ b/youtube_dl/version.py
@@ -1,2 +1,2 @@
 
-__version__ = '2013.04.31'
+__version__ = '2013.05.01'