diff --git a/book/book.tex b/book/book.tex
index fedd313ee..788a86655 100644
--- a/book/book.tex
+++ b/book/book.tex
@@ -567,7 +567,7 @@ \section*{Contributor List}
 \item Andy Pethan and Molly Farison helped debug some of the solutions,
 and Molly spotted several typos.
 
-\item Dr. Nikolas Akerblom knows how big a Hyracotherium is.
+\item Dr.\ Nikolas Akerblom knows how big a Hyracotherium is.
 
 \item Alex Morrow clarified one of the code examples.