diff --git a/trx69/icwmp/Makefile b/trx69/icwmp/Makefile
index 97254c0e5..7d8a93223 100755
--- a/trx69/icwmp/Makefile
+++ b/trx69/icwmp/Makefile
@@ -147,7 +147,6 @@ endef
 
 define Package/$(PKG_NAME)/postinst
 	#!/bin/sh
-	echo "$(CWMP_BKP_FILE)" >> $${IPKG_INSTROOT}/etc/sysupgrade.conf
 	if [ -z "$${IPKG_INSTROOT}" ]; then
 		echo "Enabling rc.d symlink for icwmpd"
 		/etc/init.d/icwmpd enable
diff --git a/trx69/icwmp/files/lib/upgrade/keep.d/icwmp b/trx69/icwmp/files/lib/upgrade/keep.d/icwmp
new file mode 100644
index 000000000..836e51185
--- /dev/null
+++ b/trx69/icwmp/files/lib/upgrade/keep.d/icwmp
@@ -0,0 +1 @@
+/etc/icwmpd/.icwmpd_backup_session.xml