diff --git a/book/10-git-internals/sections/objects.asc b/book/10-git-internals/sections/objects.asc
index bdf7d1bb..13012483 100644
--- a/book/10-git-internals/sections/objects.asc
+++ b/book/10-git-internals/sections/objects.asc
@@ -190,7 +190,6 @@ tree
 $ echo 'new file' > new.txt
 $ git update-index --cacheinfo 100644 \
   1f7a7a472abf3dd9643fd615f6da379c4acb3e3a test.txt
-$ git update-index test.txt
 $ git update-index --add new.txt
 ----