diff --git a/NPLib/scripts/build_dict.sh b/NPLib/scripts/build_dict.sh
index 0559d302bf54aea859175edc2cb57286c15c3910..facd09f59e8be13d492f0801ec9b96a98e125889 100755
--- a/NPLib/scripts/build_dict.sh
+++ b/NPLib/scripts/build_dict.sh
@@ -4,7 +4,7 @@
 # a Dictionnary, rootmap and pcm file accordingly
 
 # check rootcint exist
-command -v pipo >/dev/null 2>&1 || { printf >&2 "ERROR : rootcint binary not found.\n * For ROOT install from source check that \$ROOTSYS/bin is in your PATH\n * For Macports ROOT install consider adding /opt/local/bin to your PATH\n * For debian ROOT install consider adding /usr/bin to your PATH\n"; exit 1; }
+command -v rootcint >/dev/null 2>&1 || { printf >&2 "ERROR : rootcint binary not found.\n * For ROOT install from source check that \$ROOTSYS/bin is in your PATH\n * For Macports ROOT install consider adding /opt/local/bin to your PATH\n * For debian ROOT install consider adding /usr/bin to your PATH\n"; exit 1; }
 
 # Checking that enought argument are given
 if [ "$#" -lt 4 ]