diff --git a/libweston/pixman-renderer.c b/libweston/pixman-renderer.c
index 2d70aa47..cae89741 100644
--- a/libweston/pixman-renderer.c
+++ b/libweston/pixman-renderer.c
@@ -579,7 +579,7 @@ pixman_renderer_repaint_output(struct weston_output *output,
 	}
 	pixman_region32_fini(&hw_damage);
 
-	wl_signal_emit(&output->frame_signal, output);
+	wl_signal_emit(&output->frame_signal, output_damage);
 
 	/* Actual flip should be done by caller */
 }
diff --git a/libweston/renderer-gl/gl-renderer.c b/libweston/renderer-gl/gl-renderer.c
index 25e212b9..6c435507 100644
--- a/libweston/renderer-gl/gl-renderer.c
+++ b/libweston/renderer-gl/gl-renderer.c
@@ -1473,7 +1473,7 @@ gl_renderer_repaint_output(struct weston_output *output,
 
 	draw_output_borders(output, border_status);
 
-	wl_signal_emit(&output->frame_signal, output);
+	wl_signal_emit(&output->frame_signal, output_damage);
 
 	go->end_render_sync = create_render_sync(gr);