diff --git a/src/xwayland/window-manager.c b/src/xwayland/window-manager.c
index d50cc5cf1..67e823657 100644
--- a/src/xwayland/window-manager.c
+++ b/src/xwayland/window-manager.c
@@ -755,6 +755,7 @@ weston_wm_window_draw_decoration(void *data)
 					  window->height + 2);
 		window->surface->geometry.dirty = 1;
 
+		pixman_region32_fini(&window->surface->pending.input);
 		pixman_region32_init_rect(&window->surface->pending.input,
 					  t->margin, t->margin,
 					  width - 2 * t->margin,