diff --git a/wiki/Configuration:-Window-Rules.md b/wiki/Configuration:-Window-Rules.md
index 5e448dde0..9bcebb53d 100644
--- a/wiki/Configuration:-Window-Rules.md
+++ b/wiki/Configuration:-Window-Rules.md
@@ -622,6 +622,22 @@ window-rule {
 }
 ```
 
+#### `scroll-factor`
+
+<sup>Since: next release</sup>
+
+Set a scroll factor for all scroll events sent to a window.
+
+This will be multiplied with the scroll factor set for your input device in the [input](/wiki/Configuration:-Input.md) section.
+
+```kdl
+window-rule {
+    match app-id="firefox"
+
+    scroll-factor 0.75
+}
+```
+
 #### `geometry-corner-radius`
 
 <sup>Since: 0.1.6</sup>