diff --git a/CHANGELOG.md b/CHANGELOG.md
index 5130ba87..ecfb7338 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,9 @@
 # Changelog
 
+## Currently in development
+
+* New maintenance task: update missing checksum one, after dss start.
+
 ## 1.4.0
 
 * Provide first imaging registration support with OMERO server
diff --git a/maintenance-tasks/checksum-maintenance/plugin.properties b/maintenance-tasks/checksum-maintenance/plugin.properties
new file mode 100644
index 00000000..beb2f66a
--- /dev/null
+++ b/maintenance-tasks/checksum-maintenance/plugin.properties
@@ -0,0 +1,5 @@
+# Feeds pathinfo database and updates missing checksums
+class = ch.systemsx.cisd.etlserver.path.PathInfoDatabaseRefreshingTask
+execute-only-once = true
+compute-checksum = true
+time-stamp-of-youngest-data-set = 2019-12-01 00:00:00