diff --git a/lib/Doctrine/ORM/ORMInvalidArgumentException.php b/lib/Doctrine/ORM/ORMInvalidArgumentException.php
index 81466a0fe..accf1cc15 100644
--- a/lib/Doctrine/ORM/ORMInvalidArgumentException.php
+++ b/lib/Doctrine/ORM/ORMInvalidArgumentException.php
@@ -210,6 +210,18 @@ class ORMInvalidArgumentException extends \InvalidArgumentException
         ));
     }
 
+    /**
+     * Used when a given entityName hasn't the good type
+     *
+     * @param mixed $entityName The given entity (which shouldn't be a string)
+     *
+     * @return self
+     */
+    public static function invalidEntityName($entityName)
+    {
+        return new self(sprintf('Entity name must be a string, %s given', gettype($entityName)));
+    }
+
     /**
      * Helper method to show an object as string.
      *