diff --git a/slides/chapter-03.en.md b/slides/chapter-03.en.md
index 2f9d1f3..23d974d 100644
--- a/slides/chapter-03.en.md
+++ b/slides/chapter-03.en.md
@@ -392,5 +392,5 @@ Structure your document and text
 * As you may already have noticed, **paragraphs** are marked as ‘`\\`’. Use real paragraphs instead.
 * Time to structure our document! Use LaTex commands to declare all **headings** (`\section`, `\subsubsection`, etc.).
 * Add a **table of contents** to your document.
-* Finally, **comment out** the preamble, the document environment, and the table of contents. Only this way, your solution can be embedded in the script itself (In TeXstudio, comments can be achieved by the shortcut Ctrl+D).
+* Finally, **comment out** the preamble, the document environment, and the table of contents. Only this way, your solution can be embedded in the script itself (In TeXstudio, comments can be achieved by the shortcut Ctrl+T).