diff --git a/servers/slapd/schema/core.schema b/servers/slapd/schema/core.schema
index e36ebc062c..3ccfd708c6 100644
--- a/servers/slapd/schema/core.schema
+++ b/servers/slapd/schema/core.schema
@@ -449,3 +449,11 @@ attribute ( 2.16.840.1.113730.3.1.34 NAME 'ref' DESC 'URL Reference'
 
 objectclass ( 2.16.840.1.113730.3.2.6 NAME 'referral'
 	SUP top STRUCTURAL MAY ( ref ) )
+
+#
+# LDAPsubEntry
+#	OID not assigned (1.3.6.1.4.1.1466.115.121.1.??)
+#
+objectclass ( NAME 'LDAPsubEntry'
+	DESC 'Limited X.501 Subentry class, named by cn'
+	SUP top STRUCTURAL MUST ( cn ) )