diff --git a/user-guide/putty.md b/user-guide/putty.md
index e07632b0..e335b867 100644
--- a/user-guide/putty.md
+++ b/user-guide/putty.md
@@ -2,7 +2,7 @@
 
 ## Kerberos/AFS Failures with Default Settings
 
-The default settings of Putty allows to connect to a Linux host. But when there are services depending on Kerberos like AFS then that will fail:
+The default settings of Putty allow to connect to a Linux host. But when there are services depending on Kerberos like AFS then that will fail:
 
 ![Failing AFS](putty/missing_kerberos_ticket_delegation.png)