diff --git a/src/packages/fff/fff-ra/files/etc/uci-defaults/90-fff-ra b/src/packages/fff/fff-ra/files/etc/uci-defaults/90-fff-ra
index 458dbe45..e4524723 100644
--- a/src/packages/fff/fff-ra/files/etc/uci-defaults/90-fff-ra
+++ b/src/packages/fff/fff-ra/files/etc/uci-defaults/90-fff-ra
@@ -5,6 +5,12 @@ uci batch <<EOF
 	set dhcp.client.ra_default='2'
 	set dhcp.client.ra_management='0'
 	set dhcp.client.ra_useleasetime='1'
+
+	# Work around unexpected behavior of odhcpd (see #238).
+	#
+	# This value has to be less then or equal to
+	# dhcp.client.leasetime (set in fff-dhcp).
+	set dhcp.client.preferred_lifetime='1h'
 EOF
 
 exit 0