diff --git a/README.md b/README.md
index 2e3cd8d..e65dfbc 100644
--- a/README.md
+++ b/README.md
@@ -19,4 +19,7 @@ java TerminalImageViewer [-w <width-in-characters>] <image-filename-or-url>
 
 ```
 
+If multiple images match the filename spec, thumbnails are shown.
+
 ![Examples](http://i.imgur.com/8UyGjg8.png)
+