diff --git a/docs/window-management/rules.md b/docs/window-management/rules.md
index b5ae81b1..5c97961c 100644
--- a/docs/window-management/rules.md
+++ b/docs/window-management/rules.md
@@ -35,6 +35,8 @@ windowrule=Parameter:Values,Parameter:Values,appid:Values,title:Values
 | `single_scratchpad` | integer | `0` / `1` (default 1) | Only show one out of named scratchpads or the normal scratchpad |
 | `allow_shortcuts_inhibit` | integer | `0` / `1` (default 1) | Allow shortcuts to be inhibited by clients |
 | `idleinhibit_when_focus` | integer | `0` / `1` (default 0) | Automatically keep idle inhibit active when this window is focused |
+| `shield_when_capture` | integer | `0` / `1` | Shield window when captured |
+
 
 ### Geometry & Position