diff --git a/compact/definitions.xml b/compact/definitions.xml
index 479145bb40d0c53ae71a2421e0b28e74c3a3bb35..3ad9aa44c345f05760717cebb11fb6c45c46f156 100644
--- a/compact/definitions.xml
+++ b/compact/definitions.xml
@@ -181,10 +181,10 @@
     <constant name="BarrelDIRC_ID" value="90"/>
     <constant name="BarrelTRD_ID"  value="91"/>
     <constant name="BarrelTOF_ID"  value="92"/>
-    <constant name="TofBarrel1Assembly" value="94"/>
-    <constant name="TofBarrel1"         value="95"/>
-    <constant name="TofBarrel2Assembly" value="96"/>
-    <constant name="TofBarrel2"         value="97"/>
+    <constant name="TofBarrel1Assembly_ID" value="94"/>
+    <constant name="TofBarrel1_ID"         value="95"/>
+    <constant name="TofBarrel2Assembly_ID" value="96"/>
+    <constant name="TofBarrel2_ID"         value="97"/>
 
     <comment> 
       =====================================