diff --git a/DDCore/src/DetectorImp.cpp b/DDCore/src/DetectorImp.cpp
index 9ea6437be902638077b3d18fe351deb3084fcbb5..bf829dbe36c17c4e8dfdba0398614efa1dc02a6b 100644
--- a/DDCore/src/DetectorImp.cpp
+++ b/DDCore/src/DetectorImp.cpp
@@ -32,7 +32,7 @@
 #include <mutex>
 
 // ROOT inlcude files
-#include "TGeant4SystemOfUnits.h"
+#include "TGeoSystemOfUnits.h"
 #include "TGeoCompositeShape.h"
 #include "TGeoBoolNode.h"
 #include "TGeoManager.h"
@@ -155,7 +155,7 @@ DetectorImp::DetectorImp()
 DetectorImp::DetectorImp(const string& name)
   : TNamed(), DetectorData(), DetectorLoad(this), m_buildType(BUILD_NONE)
 {
-  //TGeant4Unit::setUnitType(TGeant4Unit::kTGeant4Units);
+  //TGeoUnit::setUnitType(TGeoUnit::kTGeant4Units);
   SetTitle("DD4hep detector description object");
   set_unexpected( description_unexpected );
   set_terminate( description_unexpected );
diff --git a/DDDigi/CMakeLists.txt b/DDDigi/CMakeLists.txt
index cd2547d055102d51326fa28c3e7183f596ba3762..542c1067a9557d605f63e1c1ef0b98d3bd6c1b6e 100644
--- a/DDDigi/CMakeLists.txt
+++ b/DDDigi/CMakeLists.txt
@@ -19,12 +19,13 @@ dd4hep_add_package_library(DDDigi SOURCES src/*.cpp
   [OPTIONAL TBB REQUIRED]
   )
 if( TBB_INCLUDE_DIR )
-  dd4hep_print( "++> TBB_INCLUDE_DIR -->  ${TBB_INCLUDE_DIR}")
-  dd4hep_print( "++> TBB_LIBRARY     -->  ${TBB_LIBRARY}")
+  dd4hep_print( "|++> TBB_INCLUDE_DIR -->  ${TBB_INCLUDE_DIR}")
+  dd4hep_print( "|++> TBB_LIBRARY     -->  ${TBB_LIBRARY}")
+  dd4hep_print( "|++> TBB found. DDDigi will run multi threaded.")
   target_compile_definitions(DDDigi PUBLIC DD4HEP_USE_TBB)
   target_link_libraries(DDDigi ${TBB_LIBRARY})
 else()
-  dd4hep_print( "++> TBB_INCLUDE_DIR -->  ${TBB_INCLUDE_DIR}")
+  dd4hep_print( "|++> TBB not found. DDDigi will only work single threaded.")
 endif()
 
 #---------------------------  Legacy libraries -------------------------------------