diff --git a/conf/systemd.service b/conf/systemd.service
index be5e9c4..b5130f1 100644
--- a/conf/systemd.service
+++ b/conf/systemd.service
@@ -5,6 +5,7 @@ Description=ownCloud Infinite Scale server
 Type=simple
 User=__APP__
 Group=__APP__
+Environment=OCIS_BASE_DATA_PATH=__DATA_DIR__
 Environment=PROXY_HTTP_ADDR=127.0.0.1:__PORT__
 Environment=OCIS_URL=https://__DOMAIN__
 ExecStart=__INSTALL_DIR__/ocis server