diff --git a/compact/cb_SiDISCS.xml b/compact/cb_SiDISCS.xml
index 8b2b0e5742d71df9356d218dceea5d45d3d3070d..8ba0afbabb3cf760d02e56f21f8267e7f03d28f2 100644
--- a/compact/cb_SiDISCS.xml
+++ b/compact/cb_SiDISCS.xml
@@ -30,7 +30,7 @@
     </comment>
     <detector id="cb_SiDISCS_ID" name="cb_SiDISCS" type="cb_SiDISCS" insideTrackingVolume="false" vis="cb_SiDISCSVis" readout="cb_SiDISCS_Hits">
 	    <material name="Ar10CO2"/>	    
-      <dimensions rmin="cb_SiDISCS_rin" rmax="cb_SiDISCS_rout" z_length="cb_SiDISCS_sizez" z="cb_SiDISCS_posz" phi0="170" phi1="330" number="cb_SiDISCS_nlayers" rmin1="cb_SiDISCS_lay_rin" rmax1="cb_SiDISCS_lay_rout" />
+      <dimensions rmin="cb_SiDISCS_rin" rmax="cb_SiDISCS_rout" z_length="cb_SiDISCS_sizez" z="cb_SiDISCS_posz" phi0="170" phi1="330" number="cb_SiDISCS_nlayers" rmin1="cb_SiDISCS_lay_rin" rmax1="cb_SiDISCS_lay_rout" dz="cb_SiDISCS_lay_thickness"/>
       <layer id="0" z="-cb_SiDISCS_sizez * 0.5 + (1 + 0) * cb_SiDISCS_lay_thickness + (1 + 0) * 5 * cm" inner_r="cb_SiDISCS_lay_rin" outer_r="cb_SiDISCS_lay_rout" vis="cb_SiDISCSVis_lay0" />
       <layer id="1" z="-cb_SiDISCS_sizez * 0.5 + (1 + 1) * cb_SiDISCS_lay_thickness + (1 + 1) * 5 * cm" inner_r="cb_SiDISCS_lay_rin" outer_r="cb_SiDISCS_lay_rout" vis="cb_SiDISCSVis_lay1" />
       <layer id="2" z="-cb_SiDISCS_sizez * 0.5 + (1 + 2) * cb_SiDISCS_lay_thickness + (1 + 2) * 5 * cm" inner_r="cb_SiDISCS_lay_rin" outer_r="cb_SiDISCS_lay_rout" vis="cb_SiDISCSVis_lay2" />