diff --git a/pi/contents_server.py b/pi/contents_server.py
index 3445fd6..554d144 100644
--- a/pi/contents_server.py
+++ b/pi/contents_server.py
@@ -93,6 +93,8 @@ async def handler(ws):
                         await send_status_image(ws, current_img)
                         await stream_alarm(ws, alarm["pcm"], alarm["sr"],
                                            alarm["ch"], alarm["bits"])
+                        # let the image persist a bit more
+                        await asyncio.sleep(1)
                         current_img = img_idle
                         await send_status_image(ws, current_img)