diff --git a/mod/book/styles.css b/mod/book/styles.css
index 4a607673da6..db6da0f697f 100644
--- a/mod/book/styles.css
+++ b/mod/book/styles.css
@@ -70,6 +70,10 @@
     list-style: circle;
 }
 
+.path-mod-book .book_toc_bullets li li:before {
+    display: none;
+}
+
 /* toc style INDENTED*/
 .path-mod-book .book_toc_indented {
   font-size: 0.8em;