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-rw-r--r--lib/epub.js/src/navigation.js3
1 files changed, 2 insertions, 1 deletions
diff --git a/lib/epub.js/src/navigation.js b/lib/epub.js/src/navigation.js
index 8d593a8..801598b 100644
--- a/lib/epub.js/src/navigation.js
+++ b/lib/epub.js/src/navigation.js
@@ -191,7 +191,8 @@ class Navigation {
*/
navItem(item, parent) {
let id = item.getAttribute("id") || undefined;
- let content = filterChildren(item, "a", true);
+ let content = filterChildren(item, "a", true)
+ || filterChildren(item, "span", true);
if (!content) {
return;