diff --git a/docs/labwc-config.5.scd b/docs/labwc-config.5.scd
index 94b13239..06338360 100644
--- a/docs/labwc-config.5.scd
+++ b/docs/labwc-config.5.scd
@@ -407,6 +407,11 @@ windows using the mouse.
 	- Left
 	- Middle
 	- Right
+	- Side
+	- Extra
+	- Forward
+	- Back
+	- Task
 
 	Supported scroll *directions* are:
 	- Up