diff --git a/core/modules/tracker/config/schema/tracker.schema.yml b/core/modules/tracker/config/schema/tracker.schema.yml
new file mode 100644
index 0000000..1cab13f
--- /dev/null
+++ b/core/modules/tracker/config/schema/tracker.schema.yml
@@ -0,0 +1,9 @@
+# Schema for the configuration files of the tracker module.
+
+tracker.settings:
+  type: mapping
+  label: 'Tracker settings'
+  mapping:
+    cron_index_limit:
+      type: integer
+      label: 'Cron index limit'
\ No newline at end of file