diff --git a/Config-options.md b/Config-options.md
index ba3404c..8084059 100644
--- a/Config-options.md
+++ b/Config-options.md
@@ -129,6 +129,8 @@ int
 
 The max number of times download a url will fail with "Already downloaded" before the rip stops.
 
+Note: To use this feature remember.url_history must be set to true
+
 ### twitter.auth
 
 String