diff --git a/tests/scripts/defines.sh b/tests/scripts/defines.sh
index a77439c2b7..48b3eb6ca7 100755
--- a/tests/scripts/defines.sh
+++ b/tests/scripts/defines.sh
@@ -13,6 +13,8 @@
 ## top-level directory of the distribution or, alternatively, at
 ## <http://www.OpenLDAP.org/license.html>.
 
+umask 077
+
 MONITORDB=${AC_monitor-no}
 BACKLDAP=${AC_ldap-ldapno}
 BACKMETA=${AC_meta-metano}