diff --git a/dbus/dbus-sysdeps-util-unix.c b/dbus/dbus-sysdeps-util-unix.c
index 0343a90..71d273a 100644
--- a/dbus/dbus-sysdeps-util-unix.c
+++ b/dbus/dbus-sysdeps-util-unix.c
@@ -121,9 +121,10 @@ _dbus_become_daemon (const DBusString *pidfile,
             _dbus_verbose ("keeping stderr open due to DBUS_DEBUG_OUTPUT\n");
         }
 
-      /* Get a predictable umask */
-      _dbus_verbose ("setting umask\n");
-      umask (022);
+      /* Don't change the umask since that may have
+       * undesirable effects on child processes.  See:
+       * https://bugs.freedesktop.org/show_bug.cgi?id=15635
+       */
 
       _dbus_verbose ("calling setsid()\n");
       if (setsid () == -1)