diff --git a/frontend/src/navigation/exploration-router.ts b/frontend/src/navigation/exploration-router.ts
index fc89a9a5..d5ba8fbd 100644
--- a/frontend/src/navigation/exploration-router.ts
+++ b/frontend/src/navigation/exploration-router.ts
@@ -1,4 +1,4 @@
-import { extend } from 'lodash';
+import { extend, invert } from 'lodash';
 
 import Router from '../core/router';
 import routePatterns from '../explorer/route-patterns';