diff --git a/core_functions.sh b/core_functions.sh
index ef2563f..d2d54f8 100644
--- a/core_functions.sh
+++ b/core_functions.sh
@@ -576,7 +576,7 @@ function usage () {
   printf " "$BOLDVERT"-s"$NORMAL" : install Solaar for Logitech Unifying devices\n"
   printf " "$BOLDVERT"-t"$NORMAL" : install TLP for Laptops and low energy usage\n"
   printf " "$BOLDVERT"-n"$NORMAL" : install lastest Nvidia graphic drivers\n"
-  printf " "$BOLDVERT"-g"$NORMAL" : install lastest free graphic drivers, mesa, ...\n"
+  printf " "$BOLDVERT"-g"$NORMAL" : install lastest free graphic drivers (nouveau, amdgpu, radeonsi, intel), mesa, ...\n"
   printf " "$BOLDVERT"-k"$NORMAL" : update system to the latest kernel\n"
   printf " "$BOLDVERT"-u"$NORMAL" : update system (apt,snap,...)\n"
   printf " "$BOLDVERT"-p"$NORMAL" : clean useless packages\n"