diff --git a/book/book.tex b/book/book.tex
index b37f29a..f06fe4f 100644
--- a/book/book.tex
+++ b/book/book.tex
@@ -19,7 +19,7 @@
 }
 
 \input{intro/preface}
-\input{intro/acknowledgements}
+\input{intro/acknowledgments}
 
 \mainmatter
 
diff --git a/book/intro/acknowledgements.tex b/book/intro/acknowledgments.tex
similarity index 92%
rename from book/intro/acknowledgements.tex
rename to book/intro/acknowledgments.tex
index 2d66c05..7a884fa 100644
--- a/book/intro/acknowledgements.tex
+++ b/book/intro/acknowledgments.tex
@@ -1,5 +1,5 @@
-\chapter{Acknowledgements}%
-\label{ch:Acknowledgements}
+\chapter{Acknowledgments}%
+\label{ch:Acknowledgments}
 This book would not have been possible without your help.
 With all your donations I~have been able to focus on finishing
 this book. Your continuous support allows me to focus