diff --git a/src/wlserver.cpp b/src/wlserver.cpp
index 563effbaad..614ebe7a3e 100644
--- a/src/wlserver.cpp
+++ b/src/wlserver.cpp
@@ -2353,11 +2353,34 @@ void wlserver_key( uint32_t key, bool press, uint32_t time )
 
 	wlr_keyboard *keyboard = wlserver.wlr.virtual_keyboard_device;
 
+	xkb_keycode_t keycode = key + 8;
+	xkb_keysym_t keysym = xkb_state_key_get_one_sym( keyboard->xkb_state, keycode );
+	bool forbidden_key =
+		keysym == XKB_KEY_XF86AudioLowerVolume ||
+		keysym == XKB_KEY_XF86AudioRaiseVolume ||
+		keysym == XKB_KEY_XF86PowerOff;
+
+	uint32_t state = press ? WL_KEYBOARD_KEY_STATE_PRESSED : WL_KEYBOARD_KEY_STATE_RELEASED;
+	if ( forbidden_key )
+	{
+		// Always send volume+/- to root server only, to avoid it reaching the game.
+		struct wlr_surface *old_kb_surf = wlserver.kb_focus_surface;
+		struct wlr_surface *new_kb_surf = steamcompmgr_get_server_input_surface( 0 );
+		if ( new_kb_surf )
+		{
+			wlserver_keyboardfocus( new_kb_surf, false );
+			wlr_seat_set_keyboard( wlserver.wlr.seat, keyboard );
+			wlr_seat_keyboard_notify_key( wlserver.wlr.seat, time, key, state );
+			wlserver_keyboardfocus( old_kb_surf, false );
+			return;
+		}
+	}
+
 	if ( !wlserver_process_hotkeys( keyboard, key, press ) )
 	{
 		assert( keyboard != nullptr );
 		wlr_seat_set_keyboard( wlserver.wlr.seat, keyboard );
-		wlr_seat_keyboard_notify_key( wlserver.wlr.seat, time, key, press );
+		wlr_seat_keyboard_notify_key( wlserver.wlr.seat, time, key, state );
 	}
 
 	bump_input_counter();