diff --git a/Geometry/HcalCommonData/src/HcalNumberingFromDDD.cc b/Geometry/HcalCommonData/src/HcalNumberingFromDDD.cc
index 3be03b6a0e8cd..b047c97ba0ecd 100644
--- a/Geometry/HcalCommonData/src/HcalNumberingFromDDD.cc
+++ b/Geometry/HcalCommonData/src/HcalNumberingFromDDD.cc
@@ -11,7 +11,7 @@
 
 #include <iostream>
 
-#define EDM_ML_DEBUG
+//#define EDM_ML_DEBUG
 using namespace geant_units;
 using namespace geant_units::operators;