--- /dev/null
+#compdef systemd-delta
+
+_delta_type() {
+ local -a _delta_types
+ _delta_types=(masked equivalent redirected overridden unchanged)
+ _values -s , "${_delta_types[@]}"
+}
+
+_arguments \
+ {-h,--help}'[Show this help]' \
+ '--version[Show package version]' \
+ '--no-pager[Do not pipe output into a pager]' \
+ '--diff=[Show a diff when overridden files differ]:boolean:(1 0)' \
+ {-t,--type=}'[Only display a selected set of override types]:types:_delta_type' \
+ ':SUFFIX:(tmpfiles.d sysctl.d systemd/system)'