diff --git a/core/modules/rest/src/Routing/ResourceRoutes.php b/core/modules/rest/src/Routing/ResourceRoutes.php
index 97363a1..f415228 100644
--- a/core/modules/rest/src/Routing/ResourceRoutes.php
+++ b/core/modules/rest/src/Routing/ResourceRoutes.php
@@ -95,7 +95,7 @@ protected function getRoutesForResourceConfig(RestResourceConfigInterface $rest_
       $methods = $route->getMethods();
       // Only expose routes that have an explicit method and allow >=1 format
       // for that method.
-      if (($methods && ($method = $methods[0]) && $supported_formats = $rest_resource_config->getFormats($method))) {
+      if (($methods && ($method = $methods[0]) = $rest_resource_config->getFormats($method))) {
         $route->setRequirement('_csrf_request_header_token', 'TRUE');
 
         // Check that authentication providers are defined.