diff --git a/phpBB/styles/prosilver/template/navbar_header.html b/phpBB/styles/prosilver/template/navbar_header.html
index 764ddd0d56..092a268b0f 100644
--- a/phpBB/styles/prosilver/template/navbar_header.html
+++ b/phpBB/styles/prosilver/template/navbar_header.html
@@ -6,7 +6,11 @@
{L_SITE_HOME}
{L_INDEX}
- {navlinks.FORUM_NAME}
+
+
+ data-forum-id="{navlinks.FORUM_ID}">{navlinks.FORUM_NAME}
+
+
diff --git a/phpBB/styles/subsilver2/template/breadcrumbs.html b/phpBB/styles/subsilver2/template/breadcrumbs.html
index d08d0ed74d..667875be4a 100644
--- a/phpBB/styles/subsilver2/template/breadcrumbs.html
+++ b/phpBB/styles/subsilver2/template/breadcrumbs.html
@@ -2,7 +2,7 @@