diff --git a/core/modules/field/config/field.settings.yml b/core/modules/field/config/field.settings.yml
new file mode 100644
index 0000000000000000000000000000000000000000..b6172c13a6984adb16b128babeb639584ced0514
--- /dev/null
+++ b/core/modules/field/config/field.settings.yml
@@ -0,0 +1 @@
+purge_batch_size: 10
diff --git a/core/modules/field/field.module b/core/modules/field/field.module
index 2274b93184e7ef17d375d2957f6b11f963b4ffe0..1c3c4fbd580ad2fbc48a29faa1a300f94098c0a5 100644
--- a/core/modules/field/field.module
+++ b/core/modules/field/field.module
@@ -323,7 +323,7 @@ function field_cron() {
   field_sync_field_status();
 
   // Do a pass of purging on deleted Field API data, if any exists.
-  $limit = variable_get('field_purge_batch_size', 10);
+  $limit = config('field.settings')->get('purge_batch_size');
   field_purge_batch($limit);
 }