diff --git a/compact/ci_ecal_scfi.xml b/compact/ci_ecal_scfi.xml
index 2ae955c219fd71145493c191357df85b3ea8f774..e0ed0ba6f8664eca3e7160cae3e6cb7e5c00b41c 100644
--- a/compact/ci_ecal_scfi.xml
+++ b/compact/ci_ecal_scfi.xml
@@ -1,7 +1,7 @@
 <lccdd>
   <define>
     <constant name="EcalEndcapP_rmax" value="Solenoid_rmax"/>
-    <constant name="EcalEndcapP_FiberRadius" value="0.235*mm"/>
+    <constant name="EcalEndcapP_FiberRadius" value="0.235*cm"/>
     <constant name="EcalEndcapP_FiberOffset" value="0.5*mm"/>
     <constant name="EcalEndcapP_FiberSpaceX" value="0.265*mm"/>
     <constant name="EcalEndcapP_FiberSpaceY" value="0.425*mm"/>