diff --git a/include/ldap_defaults.h b/include/ldap_defaults.h
index 834c001476..c8632d7dce 100644
--- a/include/ldap_defaults.h
+++ b/include/ldap_defaults.h
@@ -39,17 +39,24 @@
 #define LDAP_ENV_PREFIX "LDAP"
 
 /* default ldapi:// socket */
+#ifndef LDAPI_SOCK
 #define LDAPI_SOCK LDAP_RUNDIR LDAP_DIRSEP "run" LDAP_DIRSEP "ldapi"
+#endif
 
 /*
  * SLAPD DEFINITIONS
  */
 	/* location of the default slapd config file */
+#ifndef SLAPD_DEFAULT_CONFIGFILE
 #define SLAPD_DEFAULT_CONFIGFILE	LDAP_SYSCONFDIR LDAP_DIRSEP "slapd.conf"
+#endif
+#ifndef SLAPD_DEFAULT_CONFIGDIR
 #define SLAPD_DEFAULT_CONFIGDIR		LDAP_SYSCONFDIR LDAP_DIRSEP "slapd.d"
+#endif
+#ifndef SLAPD_DEFAULT_DB_DIR
 #define SLAPD_DEFAULT_DB_DIR		LDAP_RUNDIR LDAP_DIRSEP "openldap-data"
+#endif
 #define SLAPD_DEFAULT_DB_MODE		0600
-#define SLAPD_DEFAULT_UCDATA		LDAP_DATADIR LDAP_DIRSEP "ucdata"
 	/* default max deref depth for aliases */
 #define SLAPD_DEFAULT_MAXDEREFDEPTH	15
 	/* default sizelimit on number of entries from a search */