diff --git a/src/Symfony/Component/Translation/DependencyInjection/TranslatorPass.php b/src/Symfony/Component/Translation/DependencyInjection/TranslatorPass.php
index dd6ea3c831b84..fc43cb7323a0a 100644
--- a/src/Symfony/Component/Translation/DependencyInjection/TranslatorPass.php
+++ b/src/Symfony/Component/Translation/DependencyInjection/TranslatorPass.php
@@ -56,12 +56,10 @@ public function process(ContainerBuilder $container)
             $constraintVisitorDefinition = $container->getDefinition('translation.extractor.visitor.constraint');
             $constraintClassNames = [];
 
-            foreach ($container->getDefinitions() as $definition) {
-                if (!$definition->hasTag('validator.constraint_validator')) {
-                    continue;
-                }
+            foreach ($container->findTaggedServiceIds('validator.constraint_validator', true) as $definition) {
+                $serviceDefinition = $container->getDefinition($id);
                 // Resolve constraint validator FQCN even if defined as %foo.validator.class% parameter
-                $className = $container->getParameterBag()->resolveValue($definition->getClass());
+                $className = $container->getParameterBag()->resolveValue($serviceDefinition->getClass());
                 // Extraction of the constraint class name from the Constraint Validator FQCN
                 $constraintClassNames[] = str_replace('Validator', '', substr(strrchr($className, '\\'), 1));
             }