diff --git a/scripts/seafile.sh b/scripts/seafile.sh
index 486064edd0..d9134318aa 100755
--- a/scripts/seafile.sh
+++ b/scripts/seafile.sh
@@ -30,6 +30,7 @@ export SEAFILE_CONF_DIR=${default_seafile_data_dir}
 export SEAFILE_RPC_PIPE_PATH=${seafile_rpc_pipe_path}
 export SEAHUB_DIR=$seahubdir
 export SEAFDAV_CONF=${central_config_dir}/seafdav.conf
+export MARIADB_PLUGIN_DIR=${INSTALLPATH}/seafile/lib/plugin
 
 script_name=$0
 function usage () {