diff --git a/slides.tex b/slides.tex
index 8ce6b0c..00d1533 100644
--- a/slides.tex
+++ b/slides.tex
@@ -10,14 +10,25 @@
 \usepackage{texlib/todo}
 
 \usepackage{booktabs}
-\usepackage[normalem]{ulem}
+\usepackage[thicklines]{cancel}
+
+\renewcommand{\CancelColor}{\color{red}}
 
 %\usepackage{inconsolata}
 
+
+\lstdefinelanguage{iproute} {
+    morekeywords={inet6},
+    sensitive=true,
+}
+
+
 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 \title{Announcing IPv4 routes with an IPv6 next-hop in the Babel
 routing protocol}
-\subtitle{\textit{aka.} draft-bastian-babel-v4ov6}
+\subtitle{\textit{aka.}
+    \href{https://datatracker.ietf.org/doc/draft-bastian-babel-v4ov6/}{
+draft-bastian-babel-v4ov6}}
 \author[\slidecountline]
 {Théophile Bastian, Juliusz Chroboczek}
 \date{}
@@ -34,7 +45,8 @@ routing protocol}
 
 \begin{frame}{Traditional routing}
     \begin{align*}
-        \text{Network prefix (IPvX)} &\longrightarrow \text{Next-Hop (IPvX)}
+        \text{Network prefix (IPvX)} \quad &\longrightarrow
+        \quad \text{Next-Hop (IPvX)}
     \end{align*}
 
     \pause{}
@@ -50,12 +62,11 @@ routing protocol}
             default & & 10.42.0.254 \\
             10.102.0.0/16 & & 10.102.0.1 \\
             10.102.10.0/24 & & 10.102.10.1 \\
-            \only<3>{10.0.0.0/8 & & \sout{fd80:1::1}} \\
+            \only<3>{10.0.0.0/8 & & % \makebox[0pt]{\color{red}---}
+            \xcancel{fd80:1::1}} \\
             \bottomrule
         \end{tabular}
     \end{table}
-
-    \todo{Better strikeout}
 \end{frame}
 
 \begin{frame}{The router's job}