diff --git a/includes/admin/settings/class-wc-settings-products.php b/includes/admin/settings/class-wc-settings-products.php
index d5da136cb93..e696651b604 100644
--- a/includes/admin/settings/class-wc-settings-products.php
+++ b/includes/admin/settings/class-wc-settings-products.php
@@ -435,9 +435,11 @@ class WC_Settings_Products extends WC_Settings_Page {
 	public function save() {
 		$this->save_settings_for_current_section();
 
-		// Any time we update the product settings, we should flush the term count cache.
-		$tools_controller = WC()->get_instance_of( WC_REST_System_Status_Tools_Controller::class );
-		$tools_controller->execute_tool( 'recount_terms' );
+		/*
+		 * Product->Inventory has a setting `Out of stock visibility`.
+		 * Because of this, we need to recount the terms to keep them in-sync.
+		 */
+		WC()->call_function( 'wc_recount_all_terms' );
 
 		$this->do_update_options_action();
 	}
diff --git a/tests/php/includes/settings/class-wc-settings-products-test.php b/tests/php/includes/settings/class-wc-settings-products-test.php
index eaf88245279..1388b532418 100644
--- a/tests/php/includes/settings/class-wc-settings-products-test.php
+++ b/tests/php/includes/settings/class-wc-settings-products-test.php
@@ -148,25 +148,19 @@ class WC_Settings_Products_Test extends WC_Settings_Unit_Test_Case {
 	 * @testdox 'save' flushes the term count cache.
 	 */
 	public function test_save_does_recount_terms() {
-		// phpcs:disable Squiz.Commenting
-		$mock_tools_controller = new class() {
-			public $tool_executed;
+		$wc_recount_all_terms_called = false;
 
-			public function execute_tool( $tool ) {
-				$this->tool_executed = $tool;
-			}
-		};
-		// phpcs:enable Squiz.Commenting
-
-		$this->register_legacy_proxy_class_mocks(
+		$this->register_legacy_proxy_function_mocks(
 			array(
-				'WC_REST_System_Status_Tools_Controller' => $mock_tools_controller,
+				'wc_recount_all_terms' => function() use ( &$wc_recount_all_terms_called ) {
+					$wc_recount_all_terms_called = true;
+				},
 			)
 		);
 
 		$sut = new WC_Settings_Products();
 		$sut->save();
 
-		$this->assertEquals( 'recount_terms', $mock_tools_controller->tool_executed );
+		$this->assertTrue( $wc_recount_all_terms_called );
 	}
 }