diff --git a/jeeutil/src/main/java/de/muehlencord/shared/jeeutil/GenericEnumType.java b/jeeutil/src/main/java/de/muehlencord/shared/jeeutil/GenericEnumType.java
index 58315a2..ffc8bae 100644
--- a/jeeutil/src/main/java/de/muehlencord/shared/jeeutil/GenericEnumType.java
+++ b/jeeutil/src/main/java/de/muehlencord/shared/jeeutil/GenericEnumType.java
@@ -15,7 +15,7 @@ import org.hibernate.usertype.UserType;
  *
  * @author joern@muehlencord.de
  */
-public abstract class GenericEnumType<T, E extends Enum<E>> implements UserType {
+public abstract class GenericEnumType<T, E extends Enum<E>> implements UserType, Serializable {
 
     private int sqlType;
     private Class<E> clazz = null;