diff --git a/spk/owncloud/src/service-setup.sh b/spk/owncloud/src/service-setup.sh
index c02d6cd7e425..a45d1e875b0f 100755
--- a/spk/owncloud/src/service-setup.sh
+++ b/spk/owncloud/src/service-setup.sh
@@ -199,6 +199,10 @@ service_postinst ()
                 TEMPDIR="${SYNOPKG_PKGTMP}/${SYNOPKG_PKGNAME}"
                 ${MKDIR} "${TEMPDIR}"
                 ${TAR} -xzf "${wizard_backup_file}" -C "${TEMPDIR}" 2>&1
+                # Fix file ownership
+                if [ ${SYNOPKG_DSM_VERSION_MAJOR} -lt 7 ]; then
+                    chown -R ${WEB_USER}:${WEB_GROUP} ${TEMPDIR} 2>/dev/null
+                fi
 
                 # Restore configuration files and directories
                 rsync -aX --update -I "${TEMPDIR}/configs/root/.user.ini" "${TEMPDIR}/configs/root/.htaccess" "${OCROOT}/" 2>&1