diff --git a/servers/slapd/schema_prep.c b/servers/slapd/schema_prep.c
index 8ac8f3ae80..0af3fde49e 100644
--- a/servers/slapd/schema_prep.c
+++ b/servers/slapd/schema_prep.c
@@ -533,7 +533,7 @@ static struct slap_schema_ad_map {
 			"EQUALITY distinguishedNameMatch "
 			"SYNTAX 1.3.6.1.4.1.1466.115.121.1.12 "
 			"SINGLE-VALUE NO-USER-MODIFICATION USAGE directoryOperation )",
-		NULL, SLAP_AT_HIDE,
+		NULL, SLAP_AT_HIDE|SLAP_AT_DYNAMIC,
 		NULL, NULL,
 		NULL, NULL, NULL, NULL, NULL,
 		offsetof(struct slap_internal_schema, si_ad_entryDN) },