diff --git a/src/routes/collections.$collectionId.tsx b/src/routes/collections.$collectionId.tsx
index 2a1e6f9..3ba77d1 100644
--- a/src/routes/collections.$collectionId.tsx
+++ b/src/routes/collections.$collectionId.tsx
@@ -103,6 +103,7 @@ function CollectionDetailRoute() {
   const [escalating, setEscalating] = useState(false);
   const [addTaskOpen, setAddTaskOpen] = useState(false);
   const [reload, setReload] = useState(0);
+  const [invoiceOpen, setInvoiceOpen] = useState(false);
 
   useEffect(() => {
     let active = true;