diff --git a/examples/ClientTests/compact/Assemblies.xml b/examples/ClientTests/compact/Assemblies.xml
index a8d4a5cd0d3a0cda5ae6753b6a167f01e9cf3396..2b299a5220184b89840f2fa01622895d33dfa8ad 100644
--- a/examples/ClientTests/compact/Assemblies.xml
+++ b/examples/ClientTests/compact/Assemblies.xml
@@ -12,8 +12,8 @@
   </info>
   
   <includes>
-    <gdmlFile  ref="../../../DDDetectors/compact/elements.xml"/>
-    <gdmlFile  ref="../../../DDDetectors/compact/materials.xml"/>
+    <gdmlFile  ref="${DD4hepINSTALL}/DDDetectors/compact/elements.xml"/>
+    <gdmlFile  ref="${DD4hepINSTALL}/DDDetectors/compact/materials.xml"/>
   </includes>
   
   <define>
diff --git a/examples/ClientTests/compact/BoxTrafos.xml b/examples/ClientTests/compact/BoxTrafos.xml
index 1131b7115d9e58b7ea49958c1e6d2a077db6c2b0..7d1f97b982f8c0352299686a5534b8fd9e0aedf7 100644
--- a/examples/ClientTests/compact/BoxTrafos.xml
+++ b/examples/ClientTests/compact/BoxTrafos.xml
@@ -12,8 +12,8 @@
   </info>
   
   <includes>
-    <gdmlFile  ref="../../../DDDetectors/compact/elements.xml"/>
-    <gdmlFile  ref="../../../DDDetectors/compact/materials.xml"/>
+    <gdmlFile  ref="${DD4hepINSTALL}/DDDetectors/compact/elements.xml"/>
+    <gdmlFile  ref="${DD4hepINSTALL}/DDDetectors/compact/materials.xml"/>
   </includes>
   
   <define>
diff --git a/examples/ClientTests/compact/FCC_HcalBarrel.xml b/examples/ClientTests/compact/FCC_HcalBarrel.xml
index 24b3d883a29f623869d5410ae7c71f8e54d4999a..4ba1d43141505b15c698523be7018a3b79385b1a 100644
--- a/examples/ClientTests/compact/FCC_HcalBarrel.xml
+++ b/examples/ClientTests/compact/FCC_HcalBarrel.xml
@@ -4,8 +4,8 @@
     xs:noNamespaceSchemaLocation="http://www.lcsim.org/schemas/compact/1.0/compact.xsd">
 
     <includes>
-        <gdmlFile  ref="../../../DDDetectors/compact/elements.xml"/>
-        <gdmlFile  ref="../../../DDDetectors/compact/materials.xml"/>
+        <gdmlFile  ref="${DD4hepINSTALL}/DDDetectors/compact/elements.xml"/>
+        <gdmlFile  ref="${DD4hepINSTALL}/DDDetectors/compact/materials.xml"/>
     </includes>
 
     <define>
diff --git a/examples/ClientTests/compact/IronCylinder.xml b/examples/ClientTests/compact/IronCylinder.xml
index 1659db583427deef83b3e72c1422bd16207d8ab4..36c9b0ab1a641e258cb48dca3b1f203fe557806a 100644
--- a/examples/ClientTests/compact/IronCylinder.xml
+++ b/examples/ClientTests/compact/IronCylinder.xml
@@ -4,8 +4,8 @@
        xs:noNamespaceSchemaLocation="http://www.lcsim.org/schemas/compact/1.0/compact.xsd">
 
   <includes>
-    <gdmlFile  ref="../../../DDDetectors/compact/elements.xml"/>
-    <gdmlFile  ref="../../../DDDetectors/compact/materials.xml"/>
+    <gdmlFile  ref="${DD4hepINSTALL}/DDDetectors/compact/elements.xml"/>
+    <gdmlFile  ref="${DD4hepINSTALL}/DDDetectors/compact/materials.xml"/>
   </includes>
 
   <define>
diff --git a/examples/ClientTests/compact/LheD_tracker.xml b/examples/ClientTests/compact/LheD_tracker.xml
index b0d0401a0f9626d28954d63f155685688f18bd97..29377080a83da57d426160604bdde4199c7f0108 100644
--- a/examples/ClientTests/compact/LheD_tracker.xml
+++ b/examples/ClientTests/compact/LheD_tracker.xml
@@ -12,8 +12,8 @@
   </info>
 
   <includes>
-    <gdmlFile  ref="../../../DDDetectors/compact/elements.xml"/>
-    <gdmlFile  ref="../../../DDDetectors/compact/materials.xml"/>
+    <gdmlFile  ref="${DD4hepINSTALL}/DDDetectors/compact/elements.xml"/>
+    <gdmlFile  ref="${DD4hepINSTALL}/DDDetectors/compact/materials.xml"/>
   </includes>
 
   <define>
diff --git a/examples/ClientTests/compact/MagnetFields.xml b/examples/ClientTests/compact/MagnetFields.xml
index 05997b2c2e0627c0a4378bf400bd0b46444508b7..0b7ddf5f5aa1d2cfb431dad914844b51ea9bce42 100644
--- a/examples/ClientTests/compact/MagnetFields.xml
+++ b/examples/ClientTests/compact/MagnetFields.xml
@@ -12,8 +12,8 @@
   </info>
 
   <includes>
-    <gdmlFile  ref="../../../DDDetectors/compact/elements.xml"/>
-    <gdmlFile  ref="../../../DDDetectors/compact/materials.xml"/>
+    <gdmlFile  ref="${DD4hepINSTALL}/DDDetectors/compact/elements.xml"/>
+    <gdmlFile  ref="${DD4hepINSTALL}/DDDetectors/compact/materials.xml"/>
   </includes>
 
   <define>
@@ -25,7 +25,7 @@
   </define>
 
   <detectors>
-    <include ref="../../../DDDetectors/compact/SiD.xml"/>
+    <include ref="${DD4hepINSTALL}/DDDetectors/compact/SiD.xml"/>
   </detectors>
 
   <fields>
diff --git a/examples/ClientTests/compact/NestedDetectors.xml b/examples/ClientTests/compact/NestedDetectors.xml
index cd3d3e2a402aca999bb0f8c62ad05d7102bb103f..c4cc55cb1121b8623f78336b4ca799777fa7cd40 100644
--- a/examples/ClientTests/compact/NestedDetectors.xml
+++ b/examples/ClientTests/compact/NestedDetectors.xml
@@ -17,7 +17,7 @@
   </includes>
   
   <define>
-    <constant name="DDDetectors_dir" value="../../../DDDetectors/compact" type="string"/>;
+    <constant name="DDDetectors_dir" value="${DD4hepINSTALL}/DDDetectors/compact" type="string"/>;
     <constant name="SiD_dir" value="${DDDetectors_dir}/SiD" type="string"/>;
     <constant name="world_side" value="30000*mm"/>
     <constant name="world_x" value="world_side"/>
diff --git a/examples/ClientTests/compact/SectorBarrelCalorimeter.xml b/examples/ClientTests/compact/SectorBarrelCalorimeter.xml
index 4e454adef95ee0de2c7368522ba474470252e443..ab226ec84db69b8a9eb21614daf60f2ff824f9d0 100644
--- a/examples/ClientTests/compact/SectorBarrelCalorimeter.xml
+++ b/examples/ClientTests/compact/SectorBarrelCalorimeter.xml
@@ -12,8 +12,8 @@
   </info>
 
   <includes>
-    <gdmlFile  ref="../../../DDDetectors/compact/elements.xml"/>
-    <gdmlFile  ref="../../../DDDetectors/compact/materials.xml"/>
+    <gdmlFile  ref="${DD4hepINSTALL}/DDDetectors/compact/elements.xml"/>
+    <gdmlFile  ref="${DD4hepINSTALL}/DDDetectors/compact/materials.xml"/>
   </includes>
 
   <materials>
diff --git a/examples/ClientTests/compact/SiliconBlock.xml b/examples/ClientTests/compact/SiliconBlock.xml
index d9edaaa642e71f9e6b9ee1f436870dfba39581a1..0d42d9140fc1e08cacf72a9166153bdc91c4b6ab 100644
--- a/examples/ClientTests/compact/SiliconBlock.xml
+++ b/examples/ClientTests/compact/SiliconBlock.xml
@@ -13,8 +13,8 @@
   </info>
 
   <includes>
-    <gdmlFile  ref="../../../DDDetectors/compact/elements.xml"/>
-    <gdmlFile  ref="../../../DDDetectors/compact/materials.xml"/>
+    <gdmlFile  ref="${DD4hepINSTALL}/DDDetectors/compact/elements.xml"/>
+    <gdmlFile  ref="${DD4hepINSTALL}/DDDetectors/compact/materials.xml"/>
   </includes>
 
   <define>