diff --git a/README.md b/README.md
index 1eb0c70..4d54428 100644
--- a/README.md
+++ b/README.md
@@ -17,7 +17,7 @@ WEBDAV_USER=user
 WEBDAV_PW=pass
 WEBFRAME_PATH=/path/to/imgs/
 PORT=3000
-POLL_TIMEOUT=60000
+POLL_TIMEOUT=60000 // after this time in ms the server checks for new images
 ```
 
 # run