diff --git a/lib/krb5/kerberos.8 b/lib/krb5/kerberos.8
index 3410bcf72..ccddf2a30 100644
--- a/lib/krb5/kerberos.8
+++ b/lib/krb5/kerberos.8
@@ -7,7 +7,7 @@
 .Nm kerberos
 .Nd introduction to the Kerberos system
 .Sh DESCRIPTION
-Kerberos is a network authentication system. It's purpose is to
+Kerberos is a network authentication system. Its purpose is to
 securely authenticate users and services in an insecure network
 environment. 
 .Pp