diff --git a/book-example/src/format/config.md b/book-example/src/format/config.md
index 1b6d1f76..6f2bf9be 100644
--- a/book-example/src/format/config.md
+++ b/book-example/src/format/config.md
@@ -27,7 +27,7 @@ limit-results = 15
 
 ## Supported configuration options
 
-It is important to note that **any** relative path specified in the in the
+It is important to note that **any** relative path specified in the
 configuration will always be taken relative from the root of the book where the
 configuration file is located.