diff --git a/frontend/js/sidebar.js b/frontend/js/sidebar.js
index 720eddd..4d10580 100644
--- a/frontend/js/sidebar.js
+++ b/frontend/js/sidebar.js
@@ -1093,4 +1093,4 @@ function searchByTag(tag) {
 }
 
 
-export { initVaultContext, setSelectedVaultContext, syncVaultSelectors, shouldDisplayPath, loadVaults, initSidebarFilter, TagFilterService, loadTags, scrollTreeItemIntoView, refreshSidebarForContext, focusVaultInSidebar, refreshTagsForContext };
+export { initVaultContext, setSelectedVaultContext, syncVaultSelectors, shouldDisplayPath, loadVaults, initSidebarFilter, TagFilterService, loadTags, scrollTreeItemIntoView, refreshSidebarForContext, focusVaultInSidebar, refreshTagsForContext, syncActiveFileTreeItem };
diff --git a/frontend/js/ui.js b/frontend/js/ui.js
index 265ad01..e98d24b 100644
--- a/frontend/js/ui.js
+++ b/frontend/js/ui.js
@@ -2,6 +2,7 @@
 import { state } from './state.js';
 import { openFile, showWelcome } from './viewer.js';
 import { safeCreateIcons, getFileIcon } from './utils.js';
+import { syncActiveFileTreeItem } from './sidebar.js';
 // ---------------------------------------------------------------------------
 // Right Sidebar Manager
 // ---------------------------------------------------------------------------
diff --git a/frontend/js/viewer.js b/frontend/js/viewer.js
index 1e43210..94a3991 100644
--- a/frontend/js/viewer.js
+++ b/frontend/js/viewer.js
@@ -3,6 +3,7 @@ import { api } from './auth.js';
 import { state } from './state.js';
 import { escapeHtml, safeCreateIcons, safeHighlight, getFileIcon } from './utils.js';
 import { TabManager, closeMobileSidebar, ContextMenuManager, RightSidebarManager, showToast } from './ui.js';
+import { syncActiveFileTreeItem } from './sidebar.js';
 // ---------------------------------------------------------------------------
 // Outline/TOC Manager
 // ---------------------------------------------------------------------------