diff --git a/setup.sh b/setup.sh
index c9c2231..0a46b4c 100644
--- a/setup.sh
+++ b/setup.sh
@@ -8,7 +8,7 @@ sudo chown root:root wrapper
 sudo chown root:root nuke_me_NOW.sh
 
 # set suid
-sudo chmod 4777 wrapper
+sudo chmod 4755 wrapper
 
 # sudo chmod 4777 nuke_me_NOW.sh
 # sudo chmod 4777 $(which cryptsetup)