diff --git a/hsarback/src/de/hsadmin/pillar/JsonPillarServlet.java b/hsarback/src/de/hsadmin/pillar/JsonPillarServlet.java
index e1f8254..4a7ae79 100644
--- a/hsarback/src/de/hsadmin/pillar/JsonPillarServlet.java
+++ b/hsarback/src/de/hsadmin/pillar/JsonPillarServlet.java
@@ -39,6 +39,7 @@ public class JsonPillarServlet extends HttpServlet {
 		if (hiveFqdn != null && hiveFqdn.length() == 19 && hiveFqdn.endsWith(".hostsharing.net") && hiveFqdn.startsWith("h")) {
 			hiveName = hiveFqdn.substring(0, 3);
 		} else {
+			em.close();
 			throw new ServletException("error in hive parameter");
 		}
 		final Query hiveQuery = em.createQuery("SELECT h FROM Hives h WHERE h.name = :hive");