diff --git a/src/lib-ldap/ldap-connection.c b/src/lib-ldap/ldap-connection.c
index 1322c9341d..be9f89b33e 100644
--- a/src/lib-ldap/ldap-connection.c
+++ b/src/lib-ldap/ldap-connection.c
@@ -88,8 +88,10 @@ int ldap_connection_setup(struct ldap_connection *conn, const char **error_r)
 
 	ldap_set_option(conn->conn, LDAP_OPT_REFERRALS, 0);
 
+#ifdef LDAP_OPT_X_TLS_NEWCTX
 	opt = 0;
 	ldap_set_option(conn->conn, LDAP_OPT_X_TLS_NEWCTX, &opt);
+#endif
 
 	return 0;
 }