diff --git a/Utils/ROOT2DAT/CLASS_ROOT2DAT_Simple.cxx b/Utils/ROOT2DAT/CLASS_ROOT2DAT_Simple.cxx
index 95973b3e593001c840a903936c23b745561a9bb4..d1cf72909a07051c67b494e80ff02ff1fb649b2f 100644
--- a/Utils/ROOT2DAT/CLASS_ROOT2DAT_Simple.cxx
+++ b/Utils/ROOT2DAT/CLASS_ROOT2DAT_Simple.cxx
@@ -250,5 +250,5 @@ DataFileName<<"C"<<endl;
 }
 
 /*
-g++ -o CLASS_R2D CLASS_ROOT2DAT.cxx -I$CLASS_PATH/source/include -I$CLASS_PATH/source/external -I$CLASS_PATH/source/Model/Equivalence -I$CLASS_PATH/source/Model/Irradiation -I$CLASS_PATH/source/Model/XS -L$CLASS_lib -lCLASSpkg `root-config --cflags` `root-config --libs`
+g++ -o CLASS_R2D CLASS_ROOT2DAT.cxx $CLASS_CFLAG
 */
diff --git a/Utils/rootlogon.C b/Utils/rootlogon.C
deleted file mode 100755
index 6bc2ed9c5685aa4673c2ddc928d4d63f82dc8110..0000000000000000000000000000000000000000
--- a/Utils/rootlogon.C
+++ /dev/null
@@ -1,5 +0,0 @@
-{
-	#include "TMatrix"
-	gSystem.Load("$CLASS_lib/libCLASSpkg_root.so");
-
-}