diff --git a/homeassistant/components/downloader/config_flow.py b/homeassistant/components/downloader/config_flow.py
index 635c241edc4..15af8b56163 100644
--- a/homeassistant/components/downloader/config_flow.py
+++ b/homeassistant/components/downloader/config_flow.py
@@ -59,7 +59,7 @@ class DownloaderConfigFlow(ConfigFlow, domain=DOMAIN):
         if not os.path.isabs(download_path):
             download_path = self.hass.config.path(download_path)
 
-        if not os.path.isdir(download_path):
+        if not await self.hass.async_add_executor_job(os.path.isdir, download_path):
             _LOGGER.error(
                 "Download path %s does not exist. File Downloader not active",
                 download_path,