- <term><command>gdb</command></term>
-
- <listitem><para>Invoke the GNU debugger on the last core dump
- matching specified characteristics. </para></listitem>
+ <term><command>debug</command></term>
+
+ <listitem><para>Invoke a debugger on the last core dump
+ matching specified characteristics. By default,
+ <citerefentry><refentrytitle>gdb</refentrytitle><manvolnum>1</manvolnum></citerefentry>
+ will be used. This may be changed using the <option>--debugger=</option>
+ option or the <varname>$SYSTEMD_DEBUGGER</varname> environment
+ variable.</para></listitem>