diff --git a/DDParsers/include/Evaluator/DD4hepUnits.h b/DDParsers/include/Evaluator/DD4hepUnits.h
index 1bb728f87fc1c468a395b2624c67e8b72191ac73..f744148ecaa3b1a6c30399fa732bea22abcc15b6 100644
--- a/DDParsers/include/Evaluator/DD4hepUnits.h
+++ b/DDParsers/include/Evaluator/DD4hepUnits.h
@@ -29,8 +29,9 @@
 
 #include "RVersion.h"
 
-// We use the ROOT system units if they are avalible
-#if ROOT_VERSION_CODE >= ROOT_VERSION(6,12,0)
+// We use the ROOT system units if they are avalible (FAILS SOME TESTS FOR NOW)
+#if 0
+/// ROOT_VERSION_CODE >= ROOT_VERSION(6,12,0)
 #include "TGeoSystemOfUnits.h"
 /// Main dd4hep namespace. We must import here the ROOT TGeo units
 namespace dd4hep {