diff -r 39b7a91a3f4c -r 032825bbacab server/ssplanner.py
--- a/server/ssplanner.py	Thu Jan 23 12:32:16 2014 +0100
+++ b/server/ssplanner.py	Thu Jan 23 13:47:28 2014 +0100
@@ -90,7 +90,7 @@
                 # to be selected)
                 if checkread and eid not in neweids:
                     with session.security_enabled(read=False):
-                        eschema(session.describe(eid)[0]).check_perm(
+                        eschema(session.entity_metas(eid)['type']).check_perm(
                             session, 'read', eid=eid)
                 eidconsts[lhs.variable] = eid
     return eidconsts