diff --git a/schema.json b/schema.json
index 5c54094..6ca46d8 100644
--- a/schema.json
+++ b/schema.json
@@ -2734,8 +2734,7 @@
 					"extra"
 				],
 				"number": [
-					"number",
-					"archive_id"
+					"number"
 				],
 				"number-of-pages": [
 					"numPages"