diff --git a/info.textgrid.middleware.tgauth.rbac/ldap-schemas/gridCertificateUser.schema b/info.textgrid.middleware.tgauth.rbac/ldap-schemas/gridCertificateUser.schema
index e76050f9ecb137a7f20bf525c399430137593923..8a15fec4fc8359afbacf07387268c25080c20f04 100644
--- a/info.textgrid.middleware.tgauth.rbac/ldap-schemas/gridCertificateUser.schema
+++ b/info.textgrid.middleware.tgauth.rbac/ldap-schemas/gridCertificateUser.schema
@@ -1,11 +1,11 @@
-attributetype ( 1.3.6.1.4.1.10126.1.37.3.1
+attributetype ( 1.3.6.1.4.1.10126.1.37.3.7
 	NAME 'gridX509subject'
-	DESC 'Distinguished name of the entity, in the form /C=DE/O=GridGermany/OU=DAASI/CN=Max User'
+	DESC 'Distinguished name of the entity, in the form /C=DE/O=GridGermany/OU=DAASI/CN=Max User (cf. 1.3.6.1.4.1.10126.1.5.3.7)'
 	EQUALITY caseIgnoreMatch
 	SYNTAX 1.3.6.1.4.1.1466.115.121.1.15 )
 
 objectClass ( 1.3.6.1.4.1.10126.1.37.4.1
 	NAME 'gridCertificateUser'
-	DESC 'X509 attributes for Grid users'
+	DESC 'X509 attributes for Grid users, cf. draft-klasen-ldap-x509certificate-schema-01.schema for general solution (1.3.6.1.4.1.10126.1.5.4.2.1)'
 	AUXILIARY
 	MAY ( gridX509subject ) )