diff --git a/slides/intro.en.md b/slides/intro.en.md
index 048a078..fb6a513 100644
--- a/slides/intro.en.md
+++ b/slides/intro.en.md
@@ -4,7 +4,7 @@
 0
 
 @title
-0 First steps with&nbsp;L<sup style="font-weight: bold; font-size: 73%; margin-left: -.25em; margin-right: -.05em; position: relative; top: .2em">A</sup>T<sub style="font-size: 100%; margin-left: -.1em">E</sub>X
+First steps with&nbsp;L<sup style="font-weight: bold; font-size: 73%; margin-left: -.25em; margin-right: -.05em; position: relative; top: .2em">A</sup>T<sub style="font-size: 100%; margin-left: -.1em">E</sub>X
 
 @content
 In order to compile the script for this tutorial, a few steps have to be followed, which are explained in the next slides.