diff --git a/projects/plugins/jetpack/json-endpoints/class.wpcom-json-api-site-settings-endpoint.php b/projects/plugins/jetpack/json-endpoints/class.wpcom-json-api-site-settings-endpoint.php
index ec997e30b6ce4..8f68527994263 100644
--- a/projects/plugins/jetpack/json-endpoints/class.wpcom-json-api-site-settings-endpoint.php
+++ b/projects/plugins/jetpack/json-endpoints/class.wpcom-json-api-site-settings-endpoint.php
@@ -133,6 +133,7 @@
 			'jetpack_waf_ip_block_list_enabled'       => '(bool) Whether the IP block list is enabled',
 			'jetpack_waf_share_data'                  => '(bool) Whether the WAF should share basic data with Jetpack',
 			'jetpack_waf_share_debug_data'            => '(bool) Whether the WAF should share debug data with Jetpack',
+			'jetpack_waf_automatic_rules_last_updated_timestamp' => '(int) Timestamp of the last time the automatic rules were updated',
 		),
 
 		'response_format'     => array(
@@ -494,6 +495,7 @@ function ( $newsletter_category ) {
 						'jetpack_waf_ip_block_list_enabled' => (bool) get_option( 'jetpack_waf_ip_block_list_enabled' ),
 						'jetpack_waf_share_data'           => (bool) get_option( 'jetpack_waf_share_data' ),
 						'jetpack_waf_share_debug_data'     => (bool) get_option( 'jetpack_waf_share_debug_data' ),
+						'jetpack_waf_automatic_rules_last_updated_timestamp' => (int) get_option( 'jetpack_waf_automatic_rules_last_updated_timestamp' ),
 					);
 
 					if ( defined( 'IS_WPCOM' ) && IS_WPCOM ) {
diff --git a/projects/plugins/jetpack/tests/php/sync/test_class.jetpack-sync-options.php b/projects/plugins/jetpack/tests/php/sync/test_class.jetpack-sync-options.php
index 5b61ba47f8bce..2af71d3bd935a 100644
--- a/projects/plugins/jetpack/tests/php/sync/test_class.jetpack-sync-options.php
+++ b/projects/plugins/jetpack/tests/php/sync/test_class.jetpack-sync-options.php
@@ -273,6 +273,7 @@ public function test_sync_default_options() {
 			'jetpack_waf_ip_block_list_enabled'            => false,
 			'jetpack_waf_share_data'                       => true,
 			'jetpack_waf_share_debug_data'                 => false,
+			'jetpack_waf_automatic_rules_last_updated_timestamp' => 0,
 		);
 
 		$theme_mod_key             = 'theme_mods_' . get_option( 'stylesheet' );