diff --git a/src/Symfony/Bundle/FrameworkBundle/DependencyInjection/Configuration.php b/src/Symfony/Bundle/FrameworkBundle/DependencyInjection/Configuration.php
index cbdc103ee1..d23bdbc480 100644
--- a/src/Symfony/Bundle/FrameworkBundle/DependencyInjection/Configuration.php
+++ b/src/Symfony/Bundle/FrameworkBundle/DependencyInjection/Configuration.php
@@ -1325,7 +1325,7 @@ class Configuration implements ConfigurationInterface
                                                         return $middleware;
                                                     }
                                                     if (1 < \count($middleware)) {
-                                                        throw new \InvalidArgumentException(sprintf('Invalid middleware at path "framework.messenger": a map with a single factory id as key and its arguments as value was expected, %s given.', json_encode($middleware)));
+                                                        throw new \InvalidArgumentException('Invalid middleware at path "framework.messenger": a map with a single factory id as key and its arguments as value was expected, '.json_encode($middleware).' given.');
                                                     }
 
                                                     return [