diff --git a/p/daemon/channeld.c b/p/daemon/channeld.c
index db1e1d7..fd8776d 100644
--- a/p/daemon/channeld.c
+++ b/p/daemon/channeld.c
@@ -630,6 +630,8 @@
       return 0; // kein neuer SV moeglich.
   }
   SVISOR_OB(ch) = new_sv;
+  ACC_CLOSURE(ch) = symbol_function("check_ch_access", new_sv);
+
   if (old_sv && new_sv
       && !old_sv->QueryProp(P_INVIS)
       && !new_sv->QueryProp(P_INVIS))