diff --git a/compact/definitions.xml b/compact/definitions.xml
index 58805749595a86be8b136cf79da1d24174fec6a5..5c5a462319903e3baeb6b86ad0963a3e236b8ea1 100644
--- a/compact/definitions.xml
+++ b/compact/definitions.xml
@@ -595,7 +595,7 @@
     <constant name="ci_HCAL_posz"    value="0 * cm"/>
    
     <constant name="ci_HCAL_nlayers"       value="20"/>
-    <constant name="ci_HCAL_lay_rin"       value="76 * cm"/> <!-- Original = 80cm -->
+    <constant name="ci_HCAL_lay_rin"       value="225 * cm"/> <!-- Original = 80cm -->
     <constant name="ci_HCAL_lay_rout"      value="ci_HCAL_rout - 1 * cm"/>
     <constant name="ci_HCAL_lay_thickness" value="2* cm"/>
     <constant name="ci_HCAL_lay_gapz"      value="2* cm"/>