diff --git a/README.rdoc b/README.rdoc
index c80ac2ef320444960ae762ae308b74e96b087056..c38bf490d9c12bc8e3d7beefcc535f13264f866f 100644
--- a/README.rdoc
+++ b/README.rdoc
@@ -342,7 +342,7 @@ SSL support:: no
 Languages:: English
 Documentation:: http://github.com/fiorix/freegeoip/blob/master/README.rst
 Terms of Service:: ?
-Limitations:: ?
+Limitations:: 1000 requests per hour.  After reaching the hourly quota, all of your requests will result in HTTP 403 (Forbidden) until it clears up on the next roll over.
 
 
 == Caching