diff --git a/examples/ClientTests/compact/NestedDetectors.xml b/examples/ClientTests/compact/NestedDetectors.xml
index 9ce0986a344f55f492125d2a97ada5892a5c1423..e0d86bfe7207d29d042fa1ad6c647aad4ca13673 100644
--- a/examples/ClientTests/compact/NestedDetectors.xml
+++ b/examples/ClientTests/compact/NestedDetectors.xml
@@ -33,6 +33,10 @@
     <constant name="VertexBarrel_r5" value="7.7*cm"/>
 
     <constant name="SiTrackerBarrel_ID" value="3"/>
+
+    <constant name="tracker_region_rmax" value="world_side"/>
+    <constant name="tracker_region_zmax" value="world_side"/>
+
   </define>
 
   <limits><limitset name="SiTrackerBarrelRegionLimitSet"/></limits>