diff --git a/book/01-introduction/sections/what-is-git.asc b/book/01-introduction/sections/what-is-git.asc
index 23769b95b..343ec2a31 100644
--- a/book/01-introduction/sections/what-is-git.asc
+++ b/book/01-introduction/sections/what-is-git.asc
@@ -83,7 +83,7 @@ Git has three main states that your files can reside in: _modified_, _staged_, a
 * Staged means that you have marked a modified file in its current version to go into your next commit snapshot.
 * Committed means that the data is safely stored in your local database.
 
-This leads us to the three main sections of a Git project: the working tree, the staging area, and the Git directory.
+This leads us to the three main sections of a Git project: the working directory, the staging area, and the Git directory.
 
 .Working tree, staging area, and Git directory
 image::images/areas.png["Working tree, staging area, and Git directory."]