diff --git a/topside/ecal.xml b/topside/ecal.xml
index 7c30c56a7c1de4eff43fc4ca8832bd31391b4331..490c07fff0b2b7c23cbc2140bee483ce43723f83 100644
--- a/topside/ecal.xml
+++ b/topside/ecal.xml
@@ -3,7 +3,7 @@
   <define>
 
     <constant name="CrystalEndcap_rmin"  value="120.0*mm"/>
-    <constant name="CrystalEndcap_rmax"  value="600.0*mm"/>
+    <constant name="CrystalEndcap_rmax"  value="EcalEndcapN_rmin"/>
     <constant name="CrystalBox_x_length" value="20.0*mm"/>
     <constant name="CrystalBox_y_length" value="20.0*mm"/>
     <constant name="CrystalBox_z_length" value="200.0*mm"/>
diff --git a/topside/topside_defs.xml b/topside/topside_defs.xml
index ca16471a98d00b5f8dd3d8dbbfb54f9b003e11f1..b8abaf536cea3fbac999916f8f410e81c5a8b942 100644
--- a/topside/topside_defs.xml
+++ b/topside/topside_defs.xml
@@ -197,7 +197,7 @@
     <constant name="EcalEndcap_zmin"            value="EcalBarrelLength/2.0"/>
     <constant name="EcalEndcapThickness"        value="EcalBarrelThickness"/>
     <constant name="EcalEndcapP_rmin"           value="250.0*mm"/>
-    <constant name="EcalEndcapN_rmin"           value="350.0*mm"/>
+    <constant name="EcalEndcapN_rmin"           value="600.0*mm"/>
 
     <constant name="EcalThinLayers"             value="10"/>
     <constant name="EcalThickLayers"            value="10"/>