diff --git a/src/Symfony/Component/DependencyInjection/Compiler/CheckExceptionOnInvalidReferenceBehaviorPass.php b/src/Symfony/Component/DependencyInjection/Compiler/CheckExceptionOnInvalidReferenceBehaviorPass.php
index eef71587cdd46..29b0a54a92119 100644
--- a/src/Symfony/Component/DependencyInjection/Compiler/CheckExceptionOnInvalidReferenceBehaviorPass.php
+++ b/src/Symfony/Component/DependencyInjection/Compiler/CheckExceptionOnInvalidReferenceBehaviorPass.php
@@ -83,6 +83,10 @@ protected function processValue($value, $isRoot = false)
             }
         }
 
+        if (false === $this->container->has((string) $value) && $graph->hasNode($currentId)) {
+            return $value;
+        }
+
         throw new ServiceNotFoundException($id, $currentId);
     }
 }