diff --git a/book.json b/book.json
index e71326f..245c836 100644
--- a/book.json
+++ b/book.json
@@ -5,6 +5,9 @@
             "url": "https://github.com/lefticus/cppbestpractices"
         }
     }
-    
+    ,
+    "structure": {
+        "readme": "01-Preface.md"
+    }
     
 }