diff --git a/docs/user-guide/configuration.md b/docs/user-guide/configuration.md
index 3a399e7..5b8542e 100644
--- a/docs/user-guide/configuration.md
+++ b/docs/user-guide/configuration.md
@@ -180,7 +180,7 @@ addressbook.subscriptions              | AddressBook subscriptions URLs, separat
 Option                                 | Description
 -------------------------------------- | --------------------------------------
 limits.transittunnels                  | Override maximum number of transit tunnels. 2500 by default   
-limits.openfiles                       | Maximum size of corefile in Kb (0 - use system limit)  
+limits.openfiles                       | Limit number of open file descriptors (0 - use system limit)  
 limits.coresize                        | Maximum size of corefile in Kb (0 - use system limit)  
 
 ### Trust options