diff --git a/choreographer/browser_async.py b/choreographer/browser_async.py
index 29a36214..4c86068a 100644
--- a/choreographer/browser_async.py
+++ b/choreographer/browser_async.py
@@ -179,7 +179,7 @@ async def _close(self) -> None:
             return
         except ChannelClosedError:
             _logger.debug("Can send browser.close on close channel")
-
+        await asyncio.sleep(0.3)
         await asyncio.to_thread(self._channel.close)
 
         if await self._is_closed():