diff --git a/user-guide/putty.md b/user-guide/putty.md
index cc589d21..e07632b0 100644
--- a/user-guide/putty.md
+++ b/user-guide/putty.md
@@ -21,4 +21,4 @@ The delegated Kerberos ticket from Windows can only work for less than one day (
 
 To get a longer valid Kerberos ticket on the Linux machine, type `kinit` and authenticate yourself with your password. The newly acquired Kerberos ticket will do it for one week and AFS is happy as long too. 
 
-Alternatively you my disable Kerberos/GSSAPI authentication in Putty altogehter. But then you need always to enter your password when connecting to your Linux machine. But it will then always get a new Kerberos ticket working for one week.
+Alternatively you may disable Kerberos/GSSAPI authentication in Putty altogehter. But then you need always to enter your password when connecting to your Linux machine. But it will then always get a new Kerberos ticket working for one week.