diff --git a/src/epub/content.opf b/src/epub/content.opf
index 372912a..57fe7a8 100644
--- a/src/epub/content.opf
+++ b/src/epub/content.opf
@@ -19,7 +19,6 @@
Standard Ebooks
textual
textual
- alternativeText
readingOrder
structuralNavigation
tableOfContents