diff --git a/typo3/sysext/core/Classes/Type/Enumeration.php b/typo3/sysext/core/Classes/Type/Enumeration.php
index f77f23e..37a5c42 100644
--- a/typo3/sysext/core/Classes/Type/Enumeration.php
+++ b/typo3/sysext/core/Classes/Type/Enumeration.php
@@ -159,8 +159,8 @@ abstract class Enumeration implements TypeInterface {
 	 * @param boolean $include_default
 	 * @return array
 	 */
-	public function getConstants($include_default = FALSE) {
-		$enumConstants = static::$enumConstants[get_class($this)];
+	public static function getConstants($include_default = FALSE) {
+		$enumConstants = static::$enumConstants[get_called_class()];
 		if (!$include_default) {
 			unset($enumConstants['__default']);
 		}