diff --git a/screening/dist/admin/upgrade.sh b/screening/dist/admin/upgrade.sh
index b86fe02022011d3879df8feac909ef0ae5247847..4214925d43da37b6ec129a578a4938a182bdb5db 100755
--- a/screening/dist/admin/upgrade.sh
+++ b/screening/dist/admin/upgrade.sh
@@ -33,7 +33,6 @@ pg_dump -U $DB_USER_NAME -Fc $IMAGING_DB > $BACKUP_DIR/$IMAGING_DB-${NOW}.dmp
 
 echo Installing openBIS Datastore Server
 unzip $ROOT_DIR/datastore_server-screening*.zip -d $ROOT_DIR
-unzip $ROOT_DIR/datastore_server_plugin*.zip -d $ROOT_DIR
 
 echo Installing openBIS Application Server
 unzip $ROOT_DIR/openBIS-*.zip -d $ROOT_DIR