diff --git a/site_ansto/instrument/config/hipadaba/instdict_specification.tcl b/site_ansto/instrument/config/hipadaba/instdict_specification.tcl
index 8c4c8ece..93454b6a 100644
--- a/site_ansto/instrument/config/hipadaba/instdict_specification.tcl
+++ b/site_ansto/instrument/config/hipadaba/instdict_specification.tcl
@@ -11,7 +11,7 @@ set boolean {true false}
 #}
 
 # SICS OBJECTS MUST PROVIDE THE FOLLOWING INFORMATION
-set sobj_klass_list {aperture attenuator collimator command crystal data detector experiment graphics monitor monochromator plc sample scan user}
+set sobj_klass_list {@none aperture attenuator collimator command crystal data detector experiment graphics instrument monitor monochromator plc sample scan user}
 set sobj_sicstype_list {sicsvariable macro motor configurablevirtualmotor singlecounter histmem nxscript sicsdata scanobject}
 # Different kinds of things are added to the hdb in different ways.
 # command: This is something a client can run with hset /a/b/c start, it may have parameters and feedback.
@@ -114,10 +114,9 @@ if 1 {
 
 # hpath looks like /a/b/c/
 set regex_hpath {^(/)$|^([_a-z0-9]+)(/[_a-z0-9]+)*$}
-set instrument_dictionary [subst {
+set instrument_dictionary_spec [subst {
   regex_hpath {
     optional {
-      children {alpha alpha}
       sobj {{@any $sobj_sicstype_list} {$sobj_klass_list}}
     }
     required {