diff --git a/krb5.conf b/krb5.conf
index 103ea8c22..7d1a5472f 100644
--- a/krb5.conf
+++ b/krb5.conf
@@ -1,3 +1,8 @@
+# The krb5.conf file can include other files using either of the following directives at the beginning of the line
+# see also krb5.conf(5)
+# include /etc/krb5-sssd.conf
+# includedir /etc/krb5.conf.d
+
 [libdefaults]
 	default_realm = MY.REALM
 	clockskew = 300