diff --git a/servers/slapd/controls.c b/servers/slapd/controls.c
index eed5c8bd79..97e66724ea 100644
--- a/servers/slapd/controls.c
+++ b/servers/slapd/controls.c
@@ -113,9 +113,11 @@ static struct slap_control control_defs[] = {
 	{ LDAP_CONTROL_SYNC,
 		SLAP_CTRL_HIDE|SLAP_CTRL_SEARCH, NULL,
 		parseLDAPsync, LDAP_SLIST_ENTRY_INITIALIZER(next) },
+#ifdef LDAP_CONTROL_MODIFY_INCREMENT
 	{ LDAP_CONTROL_MODIFY_INCREMENT,
 		SLAP_CTRL_HIDE|SLAP_CTRL_MODIFY, NULL,
 		parseModifyIncrement, LDAP_SLIST_ENTRY_INITIALIZER(next) },
+#endif
 	{ LDAP_CONTROL_MANAGEDSAIT,
 		SLAP_CTRL_ACCESS, NULL,
 		parseManageDSAit, LDAP_SLIST_ENTRY_INITIALIZER(next) },