diff --git a/compact/ce_ecal_outer_glass.xml b/compact/ce_ecal_outer_glass.xml
index 7ce994aeb6d28932d17c838b37caebfd5c630f0f..7abd0b7ad90d535a92e4def85950a538e2d17978 100644
--- a/compact/ce_ecal_outer_glass.xml
+++ b/compact/ce_ecal_outer_glass.xml
@@ -26,7 +26,7 @@
 
   <readouts>
     <readout name="EcalEndcapNHits">
-      <id>system:8, sector:4, module:20</id>
+      <id>system:8,sector:4,module:20</id>
     </readout>
   </readouts>
 </lccdd>