diff --git a/files/kerberos/etc/krb5.conf b/files/kerberos/etc/krb5.conf
index 22022c823236839e2bb53baf89de43af9f6a396e..c0387515cfe43a59bc6ed9daa8f01a3132f1a1e6 100644
--- a/files/kerberos/etc/krb5.conf
+++ b/files/kerberos/etc/krb5.conf
@@ -195,6 +195,7 @@
     guestuat-mgmt.stanford.edu  = GUESTUAT.STANFORD.EDU
     guestuatidmweb.stanford.edu = GUESTUAT.STANFORD.EDU
     .slac.stanford.edu          = SLAC.STANFORD.EDU
+    .win.slac.stanford.edu      = WIN.SLAC.STANFORD.EDU
     .isc.org                    = ISC.ORG
     mit.edu                     = ATHENA.MIT.EDU
     .mit.edu                    = ATHENA.MIT.EDU