diff --git a/Geometry/HGCalCommonData/data/hgcal/v14/hgcal.xml b/Geometry/HGCalCommonData/data/hgcal/v14/hgcal.xml
index dd4ee83e97d1c..4e5e50302b334 100644
--- a/Geometry/HGCalCommonData/data/hgcal/v14/hgcal.xml
+++ b/Geometry/HGCalCommonData/data/hgcal/v14/hgcal.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0"?>
-<DDDefinition xmlns="http://www.cern.ch/cms/DDL" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.cern.ch/cms/DDL ../../../../DetectorDescription/Schema/DDLSchema.xsd">
+<DDDefinition>
 
 <ConstantsSection label="hgcal.xml" eval="true">
   <Constant name="WaferSize"             value="166.4408*mm"/>
@@ -109,7 +109,7 @@
   <Constant name="zHGCalHEmix3"          value="[zHGCal8]"/>
   <Constant name="zHGCalHEmix4"          value="[zHGCal10]"/>
   <Constant name="zHGCalHEmix5"          value="[zHGCal11]"/>
-  <Constant name="zHGCalHEmix6"          value="[zHGCal13]"/>
+  <Constant name="zHGCalHEmix6"          value="[zHGCal12]"/>
   <Constant name="rMinHGCalHEmix1"       value="[rMinHGCal6]"/>
   <Constant name="rMinHGCalHEmix2"       value="[rMinHGCal8]"/>
   <Constant name="rMaxHGCalHEmix1"       value="[rMaxHGCal6]"/>
diff --git a/Geometry/HGCalCommonData/data/hgcal/v15/hgcal.xml b/Geometry/HGCalCommonData/data/hgcal/v15/hgcal.xml
index 7a48a55cbc1bd..7acd3d00380c3 100644
--- a/Geometry/HGCalCommonData/data/hgcal/v15/hgcal.xml
+++ b/Geometry/HGCalCommonData/data/hgcal/v15/hgcal.xml
@@ -112,7 +112,7 @@
   <Constant name="zHGCalHEmix3"          value="[zHGCal8]"/>
   <Constant name="zHGCalHEmix4"          value="[zHGCal10]"/>
   <Constant name="zHGCalHEmix5"          value="[zHGCal11]"/>
-  <Constant name="zHGCalHEmix6"          value="[zHGCal13]"/>
+  <Constant name="zHGCalHEmix6"          value="[zHGCal12]"/>
   <Constant name="rMinHGCalHEmix1"       value="[rMinHGCal6]"/>
   <Constant name="rMinHGCalHEmix2"       value="[rMinHGCal8]"/>
   <Constant name="rMaxHGCalHEmix1"       value="[rMaxHGCal6]"/>