diff --git a/README.md b/README.md
index fb8e4ee..da7069b 100644
--- a/README.md
+++ b/README.md
@@ -6,6 +6,8 @@ Tired of sorting your chests? Let's spend less time on organizing, and more on p
 
 ChestSort will automatically sort every chest after you have closed it. Every player can enable or disable this feature if desired with the simple command `/chestsort`. By default, sorting is disabled. If a player uses a chest for the first time after logging in, they will be shown a text on how to enable automatic chest sorting.
 
+Sorting will work with chests and shulker boxes.
+
 ![Screenshot ChestSort](https://static.jeff-media.de/i/chestsortbeforeafter.jpg "Screenshot ChestSort")
 
 ## Download