diff --git a/settings/hyprland.nix b/settings/hyprland.nix
index f4adef0..1349fb5 100644
--- a/settings/hyprland.nix
+++ b/settings/hyprland.nix
@@ -286,6 +286,11 @@ in
             hl.animation({ leaf = "workspaces", enabled = true, speed = 1, bezier = "snap" })
 
             -- Window rules
+            -- Hide xembed-sni-proxy container window (classless, titleless floating window).
+            hl.window_rule({
+              match = { class = "^$", title = "^$", float = true },
+              workspace = "special silent",
+            })
             -- Battle.net tray icon leaks as a tiny floating XWayland window.
             hl.window_rule({
               match = { class = "steam_app_0", title = "^$", float = true },