diff --git a/cli/commit-file-format.txt b/cli/commit-file-format.txt
index 98a8434..b902e49 100644
--- a/cli/commit-file-format.txt
+++ b/cli/commit-file-format.txt
@@ -52,7 +52,7 @@ persons:
 publisher: Foo Publishing
 published_year: 2010
 edition: 1
-num_pages: 420
+pages: 420
 series:
 description:
  Lorem ipsum dolor sit amet, consectetur adipiscing elit.