diff --git a/src/theme/components/collapsible-header.scss b/src/theme/components/collapsible-header.scss
index c890beafb..b587f82e2 100644
--- a/src/theme/components/collapsible-header.scss
+++ b/src/theme/components/collapsible-header.scss
@@ -108,8 +108,9 @@ body:not(.core-iframe-fullscreen) .collapsible-header-page {
             display: none;
         }
 
-        .collapsible-header-expanded h1 {
+        .collapsible-header-expanded .collapsible-header-original-title {
             opacity: 1;
+            visibility: visible;
         }
 
     }