diff --git a/servers/slapd/back-ldap/config.c b/servers/slapd/back-ldap/config.c
index 923a0af88ac492cd50a69d8435f32d2bbd0fe741..502ea27b6341695e38d80fd0fb44a46e45d0c14b 100644
--- a/servers/slapd/back-ldap/config.c
+++ b/servers/slapd/back-ldap/config.c
@@ -373,6 +373,9 @@ static ConfigOCs ldapocs[] = {
 			"$ olcDbProxyWhoAmI "
 			"$ olcDbTimeout "
 			"$ olcDbIdleTimeout "
+			"$ olcDbConnTtl "
+			"$ olcDbNetworkTimeout "
+			"$ olcDbProtocolVersion "
 			"$ olcDbSingleConn "
 			"$ olcDbCancel "
 			"$ olcDbQuarantine "