diff --git a/clients/window.h b/clients/window.h
index 3d353969..84846ffa 100644
--- a/clients/window.h
+++ b/clients/window.h
@@ -253,8 +253,6 @@ window_move(struct window *window, struct input *input, uint32_t time);
 void
 window_get_allocation(struct window *window, struct rectangle *allocation);
 void
-window_set_transparent(struct window *window, int transparent);
-void
 window_schedule_redraw(struct window *window);
 void
 window_schedule_resize(struct window *window, int width, int height);