diff --git a/ponderings/my-battles-with-netcup-ipv6-on-freebsd/index.html b/ponderings/my-battles-with-netcup-ipv6-on-freebsd/index.html
index cf9fa0a..50476ef 100644
--- a/ponderings/my-battles-with-netcup-ipv6-on-freebsd/index.html
+++ b/ponderings/my-battles-with-netcup-ipv6-on-freebsd/index.html
@@ -171,7 +171,7 @@ thought I'd look more in depth at the Netcup forums and found <a href="https://f
 </span></code></pre>
 <p>Pop that in my <code>rc.conf</code> and also change my prefix to /48 while I'm there.</p>
 <pre data-lang="conf" style="background-color:#212121;color:#eeffff;" class="language-conf "><code class="language-conf" data-lang="conf"><span style="color:#89ddff;">...
-</span><span style="color:#f78c6c;">ifconfig_vtnet0_ipv6</span><span style="color:#89ddff;">=</span><span style="color:#c3e88d;">&quot;inet6 2a03:4000:AAAA:BBBB:cccc:dddd:eeee:ffff/64&quot;
+</span><span style="color:#f78c6c;">ifconfig_vtnet0_ipv6</span><span style="color:#89ddff;">=</span><span style="color:#c3e88d;">&quot;inet6 2a03:4000:AAAA:BBBB:cccc:dddd:eeee:ffff/48&quot;
 </span><span style="color:#f78c6c;">ipv6_defaultrouter</span><span style="color:#89ddff;">=</span><span style="color:#c3e88d;">&quot;2a03:4000:AAAA::2&quot;
 </span><span style="color:#89ddff;">...
 </span></code></pre>