diff --git a/nixos/doc/manual/release-notes/rl-2105.xml b/nixos/doc/manual/release-notes/rl-2105.xml
index 07b28147d696..7364151ef666 100644
--- a/nixos/doc/manual/release-notes/rl-2105.xml
+++ b/nixos/doc/manual/release-notes/rl-2105.xml
@@ -436,7 +436,7 @@
     </para>
     <programlisting>
       TMPDIR=$(mktemp -d)
-      slaptest -f /path/to/slapd.conf $TMPDIR
+      slaptest -f /path/to/slapd.conf -F $TMPDIR
       slapcat -F $TMPDIR -n0 -H 'ldap:///???(!(objectClass=olcSchemaConfig))'
     </programlisting>
     <para>