diff --git a/theme/boost/scss/moodle/courseindex.scss b/theme/boost/scss/moodle/courseindex.scss
index 499fa85460a..b74778f5e23 100644
--- a/theme/boost/scss/moodle/courseindex.scss
+++ b/theme/boost/scss/moodle/courseindex.scss
@@ -175,6 +175,9 @@ $courseindex-item-current: $primary !default;
                 padding-left: $courseindex-item-padding-x;
             }
         }
+        &.delegated-section {
+            width: 100%;
+        }
     }
 
     // General icons size.
diff --git a/theme/boost/style/moodle.css b/theme/boost/style/moodle.css
index 67ea8b604ec..54f1ea62697 100644
--- a/theme/boost/style/moodle.css
+++ b/theme/boost/style/moodle.css
@@ -38630,6 +38630,9 @@ div.editor_atto_toolbar button .icon {
 .courseindex .courseindex-section .courseindex-sectioncontent .courseindex-item {
   padding-left: 0.5rem;
 }
+.courseindex .courseindex-section.delegated-section {
+  width: 100%;
+}
 .courseindex .icon {
   font-size: 12px;
 }
diff --git a/theme/classic/style/moodle.css b/theme/classic/style/moodle.css
index 832d8db1701..4792bf4a9a7 100644
--- a/theme/classic/style/moodle.css
+++ b/theme/classic/style/moodle.css
@@ -38564,6 +38564,9 @@ div.editor_atto_toolbar button .icon {
 .courseindex .courseindex-section .courseindex-sectioncontent .courseindex-item {
   padding-left: 0.5rem;
 }
+.courseindex .courseindex-section.delegated-section {
+  width: 100%;
+}
 .courseindex .icon {
   font-size: 12px;
 }