diff --git a/1-introduction/introduction/introduction.tex b/1-introduction/introduction/introduction.tex
index a12c768..d6e0424 100644
--- a/1-introduction/introduction/introduction.tex
+++ b/1-introduction/introduction/introduction.tex
@@ -1,5 +1,5 @@
 \chapter{Introduction}
-\label{ch:introduction}
+\mainlabel{introduction}
 
 \sectionstarbookmark{Wearable Haptics and Augmented Reality}
 
diff --git a/1-introduction/related-work/related-work.tex b/1-introduction/related-work/related-work.tex
index 03f335c..3ec0fcc 100644
--- a/1-introduction/related-work/related-work.tex
+++ b/1-introduction/related-work/related-work.tex
@@ -1,5 +1,4 @@
-\mainchapter{Related Work}
-\label{ch:related_work}
+\mainlabel{related_work}
 
 \section{Haptics}