diff --git a/src/routes/inventory/filamentstocks.js b/src/routes/inventory/filamentstocks.js
index 70e7ed9..cc098f9 100644
--- a/src/routes/inventory/filamentstocks.js
+++ b/src/routes/inventory/filamentstocks.js
@@ -15,7 +15,7 @@ import {
 // list of filament stocks
 router.get('/', isAuthenticated, (req, res) => {
   const { page, limit, property, search, sort, order } = req.query;
-  const allowedFilters = ['filament', 'state', 'startingWeight', 'currentWeight'];
+  const allowedFilters = ['filament', 'state', 'startingWeight', 'currentWeight', 'filament._id'];
   const filter = getFilter(req.query, allowedFilters);
   listFilamentStocksRouteHandler(req, res, page, limit, property, filter, search, sort, order);
 });