diff --git a/hsarback/test/de/hsadmin/remote/CustomerTest.java b/hsarback/test/de/hsadmin/remote/CustomerTest.java
index 20cd368..1052b41 100644
--- a/hsarback/test/de/hsadmin/remote/CustomerTest.java
+++ b/hsarback/test/de/hsadmin/remote/CustomerTest.java
@@ -181,6 +181,24 @@ public class CustomerTest {
 		}
 	}
 
+	@Test
+	public void testUpdateAsHostmasterSharesSigned() {
+		String user = "ad";
+		String grantingTicketURL = cas.getGrantingTicketURL(user);
+		Map<String, String> whereParams = new HashMap<String, String>();
+		Map<String, String> setParams = new HashMap<String, String>();
+		whereParams.put("membercode", "hsh00-aaa");
+		setParams.put("sharessigned", "1");
+		Object[] params = new Object[] { user, 
+				cas.getServiceTicket(grantingTicketURL, RemoteTestHelper.getBackendURL()), 
+				setParams, whereParams };
+		try {
+			client.execute(MODULE + ".update", params);
+		} catch (XmlRpcException e) {
+			fail(e.getMessage());
+		}
+	}
+
 	@Test
 	public void testDeleteAsMember() {
 		String user = "hsh00-aaa";