diff --git a/build_debian.sh b/build_debian.sh
index 69b3a10ec8..51154cc073 100755
--- a/build_debian.sh
+++ b/build_debian.sh
@@ -317,10 +317,6 @@ fi
 ## Disable kexec supported reboot which was installed by default
 sudo sed -i 's/LOAD_KEXEC=true/LOAD_KEXEC=false/' $FILESYSTEM_ROOT/etc/default/kexec
 
-## Modifty ntp default configuration: disable initial jump (add -x), and disable
-## jump when time difference is greater than 1000 seconds (remove -g).
-sudo sed -i "s/NTPD_OPTS='-g'/NTPD_OPTS='-x'/" $FILESYSTEM_ROOT/etc/default/ntp
-
 ## Remove sshd host keys, and will regenerate on first sshd start
 sudo rm -f $FILESYSTEM_ROOT/etc/ssh/ssh_host_*_key*
 sudo cp files/sshd/host-ssh-keygen.sh $FILESYSTEM_ROOT/usr/local/bin/