diff --git a/frontend/js/ui.js b/frontend/js/ui.js
index d39ec2b..543a116 100644
--- a/frontend/js/ui.js
+++ b/frontend/js/ui.js
@@ -1,5 +1,6 @@
 /* ObsiGate — UI: theme, sidebar, context menus, tabs, toast, find-in-page */
 import { rightSidebarVisible, rightSidebarWidth, currentVault, currentPath, selectedContextVault } from './state.js';
+import { openFile } from './viewer.js';
 
 // ---------------------------------------------------------------------------
 // Right Sidebar Manager