diff --git a/ILD/compact/ILD_l4_v01/ILD_l4_v01.xml b/ILD/compact/ILD_l4_v01/ILD_l4_v01.xml
index 2f28f8bef..1ee406105 100644
--- a/ILD/compact/ILD_l4_v01/ILD_l4_v01.xml
+++ b/ILD/compact/ILD_l4_v01/ILD_l4_v01.xml
@@ -134,7 +134,7 @@
     <include ref="./SHcalSc04_EndcapRing_v01.xml"/>
 
     <include ref="../ILD_common_v01/Yoke05_Barrel.xml"/>
-    <include ref="../ILD_common_v01/Yoke05_Endcaps.xml"/>g
+    <include ref="../ILD_common_v01/Yoke05_Endcaps.xml"/>
     <include ref="../ILD_common_v01/LumiCal.xml"/>
     <include ref="../ILD_common_v01/LHCal01.xml"/>
     <include ref="../ILD_common_v01/BeamCal08.xml"/>
@@ -190,8 +190,8 @@
 	<segmentation name="Scigrid"  type="TiledLayerGridXY"  key_value="4"  grid_size_x="3" grid_size_y="3.03248"/>
        </segmentation>
       <hits_collections>
-        <hits_collection name="HCalBarrelRPCHits"  key="slice" key_value="3"/>
-        <hits_collection name="HcalBarrelRegCollection"  key="slice" key_value="6"/>
+        <hits_collection name="HCalBarrelRPCHits"  key="slice" key_value="2"/>
+        <hits_collection name="HcalBarrelRegCollection"  key="slice" key_value="4"/>
       </hits_collections>
       <id>system:5,module:3,stave:4,tower:5,layer:6,slice:4,x:32:-16,y:-16</id>
     </readout>
diff --git a/detector/calorimeter/SHcalSc04_Barrel_v04.cpp b/detector/calorimeter/SHcalSc04_Barrel_v04.cpp
index b4c3e2a75..4790318ef 100644
--- a/detector/calorimeter/SHcalSc04_Barrel_v04.cpp
+++ b/detector/calorimeter/SHcalSc04_Barrel_v04.cpp
@@ -549,16 +549,14 @@ static Ref_t create_detector(LCDD& lcdd, xml_h element, SensitiveDetector sens)
 	// slice PlacedVolume
 	PlacedVolume slice_phv = ChamberLogical.placeVolume(slice_vol,Position(0.,0.,slice_pos_z));
 
-	int slice_id  = (layer_id > Hcal_nlayers) ? slice_number : - slice_number ;
-
-	slice_phv.addPhysVolID("layer",logical_layer_id).addPhysVolID("slice", slice_id );
+	slice_phv.addPhysVolID("layer",logical_layer_id).addPhysVolID("slice", slice_number );
 
 	
-	// if ( x_slice.isSensitive() ) {
-	//   int slice_id  = (layer_id > Hcal_nlayers)? 1:-1;
-	//   slice_phv.addPhysVolID("layer",logical_layer_id).addPhysVolID("tower",slice_id);
-	//   printout( DD4hep::DEBUG,  "SHcalSc04_Barrel_v04", "  logical_layer_id:  %d  slice_id:  %d", logical_layer_id, slice_id  ) ;
-	// }
+	if ( x_slice.isSensitive() ) {
+	  int tower_id  = (layer_id > Hcal_nlayers)? 1:-1;
+	  slice_phv.addPhysVolID("tower",tower_id);
+	  printout( DD4hep::DEBUG,  "SHcalSc04_Barrel_v04", "  logical_layer_id:  %d  tower_id:  %d", logical_layer_id, tower_id  ) ;
+	}
 	
 	slice.setPlacement(slice_phv);
 	// Increment x position for next slice.