diff --git a/cheta/task_schedule.cfg b/cheta/task_schedule.cfg
index b7e3c181..bda4376f 100644
--- a/cheta/task_schedule.cfg
+++ b/cheta/task_schedule.cfg
@@ -40,7 +40,7 @@ alert       aca@head.cfa.harvard.edu
 <task eng_archive>
       cron       * * * * *
       check_cron * * * * *
-      exec cheta_update_server_archive --data-root $ENV{SKA}/data/eng_archive
+      exec env HDF5_USE_FILE_LOCKING=FALSE cheta_update_server_archive --data-root $ENV{SKA}/data/eng_archive
       exec cheta_check_integrity --data-root $ENV{SKA}/data/eng_archive
       exec cheta_update_server_sync --sync-root $ENV{SKA}/data/eng_archive
       <check>