diff --git a/src/DI/ContainerBuilder.php b/src/DI/ContainerBuilder.php
index 91a633912..afbb030ce 100644
--- a/src/DI/ContainerBuilder.php
+++ b/src/DI/ContainerBuilder.php
@@ -548,7 +548,7 @@ public function generateClasses($className = NULL, $parentName = NULL)
 			->setValue(array(Container::TYPES => $this->classes));
 
 		foreach ($definitions as $name => $def) {
-			$meta->value[Container::SERVICES][$name] = ($def->getImplement() ?: $def->getClass()) ?: NULL;
+			$meta->value[Container::SERVICES][$name] = $def->getClass() ?: NULL;
 			foreach ($def->getTags() as $tag => $value) {
 				$meta->value[Container::TAGS][$tag][$name] = $value;
 			}