diff --git a/Tracker/TrackerDetDescr/FaserSCT_GeoModel/src/SCT_Barrel.cxx b/Tracker/TrackerDetDescr/FaserSCT_GeoModel/src/SCT_Barrel.cxx
index f5d23f80f5728fd2fdbd24148c846def35d48264..d1801935270cf7eb1878a8d6f0e6b3def296ae01 100644
--- a/Tracker/TrackerDetDescr/FaserSCT_GeoModel/src/SCT_Barrel.cxx
+++ b/Tracker/TrackerDetDescr/FaserSCT_GeoModel/src/SCT_Barrel.cxx
@@ -110,8 +110,8 @@ SCT_Barrel::build(SCT_Identifier id)
   }
 
   // Extra Material
-  TrackerDD::ExtraMaterial xMat(m_geometryManager->distortedMatManager());
-  xMat.add(barrel, "SCTBarrel");
+  // TrackerDD::ExtraMaterial xMat(m_geometryManager->distortedMatManager());
+  // xMat.add(barrel, "SCTBarrel");
   
   return barrel;
   
diff --git a/Tracker/TrackerDetDescr/FaserSCT_GeoModel/src/SCT_Layer.cxx b/Tracker/TrackerDetDescr/FaserSCT_GeoModel/src/SCT_Layer.cxx
index 4e3811f2018bd8fa45abcd4ad2b74f0b88a88c2b..d8dfcd75684c59d0dd8269af0a6955889e33df2f 100644
--- a/Tracker/TrackerDetDescr/FaserSCT_GeoModel/src/SCT_Layer.cxx
+++ b/Tracker/TrackerDetDescr/FaserSCT_GeoModel/src/SCT_Layer.cxx
@@ -126,8 +126,8 @@ SCT_Layer::build(SCT_Identifier id)
   }
 
   // Extra Material
-  TrackerDD::ExtraMaterial xMat(m_geometryManager->distortedMatManager());
-  xMat.add(layer, "SCTLayer");
+  // TrackerDD::ExtraMaterial xMat(m_geometryManager->distortedMatManager());
+  // xMat.add(layer, "SCTLayer");
 
   return layer;
 }