diff --git a/src/_wdctl b/src/_wdctl
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+#compdef wdctl
+# ------------------------------------------------------------------------------
+# Copyright (c) 2025 Github zsh-users - https://github.com/zsh-users
+#
+# Permission is hereby granted, free of charge, to any person obtaining
+# a copy of this software and associated documentation files (the
+# "Software"), to deal in the Software without restriction, including
+# without limitation the rights to use, copy, modify, merge, publish,
+# distribute, sublicense, and/or sell copies of the Software, and to
+# permit persons to whom the Software is furnished to do so, subject to
+# the following conditions:
+#
+# The above copyright notice and this permission notice shall be included
+# in all copies or substantial portions of the Software.
+#
+# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+# OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+# THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
+# OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+# ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+# OTHER DEALINGS IN THE SOFTWARE.
+# ------------------------------------------------------------------------------
+# Description
+# -----------
+#
+#  Completion script for wdctl v2.41 (https://github.com/util-linux/util-linux)
+#
+# ------------------------------------------------------------------------------
+# Authors
+# -------
+#
+#  * Shohei Yoshida (https://github.com/syohex) <syohex@gmail.com>
+#
+# ------------------------------------------------------------------------------
+
+(( $+functions[_wdctl_output_columns] )) ||
+_wdctl_output_columns() {
+  local -a columns=(
+    "FLAG[flag name]"
+    "DESCRIPTION[flag description]"
+    "STATUS[flag status]"
+    "BOOT-STATUS[flag boot status]"
+    "DEVICE[watchdog device name]"
+  )
+
+  _values -s ',' column $columns
+}
+
+_arguments -s \
+  '(- *)'{-h,--help}'[display this help]' \
+  '(- *)'{-V,--version}'[display version]' \
+  '(-f --flags)'{-f,--flags}'[print selected flags only]:flags' \
+  '(-F --noflags)'{-F,--noflags}'[do not print information about flags]' \
+  '(-I --noident)'{-I,--noident}'[do not print watchdog identity information]' \
+  '(-n --noheadings)'{-n,--noheadings}'[do not print headings for flags table]' \
+  '(-O --oneline)'{-O,--oneline}'[print all information on one line]' \
+  '(-o --output)'{-o,--output}'[output columns]:columns:_wdctl_output_columns' \
+  '(-p --setpretimeout)'{-p,--setpretimeout}'[set watchdog pre-timeout]:seconds' \
+  '(-g --setpregovernor)'{-g,--setpregovernor}'[set pre-timeout governor]:name' \
+  '(-r --raw)'{-r,--raw}'[use raw output format for flags table]' \
+  '(-T --notimeouts)'{-T,--notimeouts}'[do not print watchdog timeouts]' \
+  '(-s --settimeout)'{-s,--settimeout}'[set watchdog timeout]:seconds' \
+  '(-x --flags-only)'{-x,--flags-only}'[print only flags table]'
+
+# Local Variables:
+# mode: Shell-Script
+# sh-indentation: 2
+# indent-tabs-mode: nil
+# sh-basic-offset: 2
+# End:
+# vim: ft=zsh sw=2 ts=2 et