diff --git a/os-brainux/override.sh b/os-brainux/override.sh
index 89cd76b..402d19f 100755
--- a/os-brainux/override.sh
+++ b/os-brainux/override.sh
@@ -9,6 +9,7 @@ install -g root -o root -m 0644 $SRC/usr/lib/os-release $DST/usr/lib/os-release
 install -g root -o root -m 0644 $SRC/etc/issue $DST/etc/issue
 install -g root -o root -m 0644 $SRC/etc/issue.net $DST/etc/issue.net
 install -g root -o root -m 0644 $SRC/etc/motd $DST/etc/motd
+install -g root -o root -m 0440 $SRC/etc/sudoers $DST/etc/sudoers
 
 install -g root -o root -m 0644 $SRC/etc/X11/xorg.conf $DST/etc/X11/xorg.conf
 install -g root -o root -m 0644 $SRC/etc/X11/Xsession.d/96calibrate $DST/etc/X11/Xsession.d/96calibrate
diff --git a/os-brainux/override/etc/sudoers b/os-brainux/override/etc/sudoers
new file mode 100644
index 0000000..3f5ae46
--- /dev/null
+++ b/os-brainux/override/etc/sudoers
@@ -0,0 +1,28 @@
+#
+# This file MUST be edited with the 'visudo' command as root.
+#
+# Please consider adding local content in /etc/sudoers.d/ instead of
+# directly modifying this file.
+#
+# See the man page for details on how to write a sudoers file.
+#
+Defaults	env_reset,pwfeedback
+Defaults	mail_badpass
+Defaults	secure_path="/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin"
+
+# Host alias specification
+
+# User alias specification
+
+# Cmnd alias specification
+
+# User privilege specification
+root	ALL=(ALL:ALL) ALL
+takumi	ALL=(ALL:ALL) ALL
+
+# Allow members of group sudo to execute any command
+%sudo	ALL=(ALL:ALL) ALL
+
+# See sudoers(5) for more information on "#include" directives:
+
+#includedir /etc/sudoers.d