Check for relative path

homeassistant/components/downloader.py

@@ -42,6 +42,10 @@ def setup(hass, config):
 
     download_path = config[DOMAIN][CONF_DOWNLOAD_DIR]
 
+    # If path is relative, we assume relative to HASS config dir
+    if not os.path.isabs(download_path):
+            download_path = hass.config.path(download_path)
+
     if not os.path.isdir(download_path):
 
         logger.error(