diff --git a/frontend/main.ts b/frontend/main.ts
index c6cb39c..a3a5644 100644
--- a/frontend/main.ts
+++ b/frontend/main.ts
@@ -71,9 +71,10 @@ function initBoatActions() {
           const rowers = Number(select.dataset.seats) - 1;
           choiceObjects['newrower'].config.maxItemCount = rowers;
           choiceObjects['newrower'].removeActiveItems(rowers);
-          let boatSelect = <HTMLSelectElement>document.querySelector('#boat_id');
           
-          choiceObjects['boat_id'].setChoiceByValue(select.dataset.id);
+	  if (select.dataset.id) {
+          	choiceObjects['boat_id'].setChoiceByValue(select.dataset.id);
+	  }
           
           (rowers === 0 ? choiceObjects['newrower'].disable() : choiceObjects['newrower'].enable());
         }