diff --git a/src/Orm/Mapping/AnnotationDriver.php b/src/Orm/Mapping/AnnotationDriver.php
index 3125b21..486e2f1 100644
--- a/src/Orm/Mapping/AnnotationDriver.php
+++ b/src/Orm/Mapping/AnnotationDriver.php
@@ -97,13 +97,7 @@ public function getAllClassNames(): array
 	 */
 	public function isTransient($className): bool
 	{
-		foreach ($this->drivers as $driver) {
-			if ($driver->isTransient($className)) {
-				return true;
-			}
-		}
-
-		return false;
+		return $this->getDriveByEntityClassName($className)->isTransient($className);
 	}