diff --git a/man/waybar-disk.5.scd b/man/waybar-disk.5.scd
index 2a69cf4..e0b924f 100644
--- a/man/waybar-disk.5.scd
+++ b/man/waybar-disk.5.scd
@@ -39,6 +39,10 @@ Addressed by *disk*
 	typeof: string ++
 	Command to execute when clicked on the module.
 
+*on-click-middle*: ++
+        typeof: string ++
+        Command to execute when middle-clicked on the module using mousewheel.
+
 *on-click-right*: ++
 	typeof: string ++
 	Command to execute when you right clicked on the module.