diff --git a/hsarback/src/de/hsadmin/mods/db/PgSqlDatabaseModuleImpl.java b/hsarback/src/de/hsadmin/mods/db/PgSqlDatabaseModuleImpl.java
index 12ad13f..84d3720 100644
--- a/hsarback/src/de/hsadmin/mods/db/PgSqlDatabaseModuleImpl.java
+++ b/hsarback/src/de/hsadmin/mods/db/PgSqlDatabaseModuleImpl.java
@@ -75,8 +75,8 @@ public class PgSqlDatabaseModuleImpl extends AbstractModuleImpl {
 		Transaction transaction = getTransaction();
 		EntityManager em = transaction.getEntityManager();
 		UnixUser unixUser = transaction.getLoginUser();
-		MySqlDatabase detachtedDB = (MySqlDatabase) existingEntity;
-		MySqlDatabase attachedDB = em.find(MySqlDatabase.class, detachtedDB.getId());
+		PgSqlDatabase detachtedDB = (PgSqlDatabase) existingEntity;
+		PgSqlDatabase attachedDB = em.find(PgSqlDatabase.class, detachtedDB.getId());
 		if (!attachedDB.getName().equals(detachtedDB.getName())) {
 			throw new AuthorisationException(unixUser, "update", existingEntity, "name");
 		}