diff --git a/frontend/src/components/SwipeTabs.tsx b/frontend/src/components/SwipeTabs.tsx
index bb3e46e..10ceffd 100644
--- a/frontend/src/components/SwipeTabs.tsx
+++ b/frontend/src/components/SwipeTabs.tsx
@@ -28,10 +28,10 @@ const EDGE_RESISTANCE = 0.35;
 const DEFAULT_THRESHOLD = 0.2;
 const DEFAULT_RENDER_WINDOW = 1;
 
-const findTouchById = (touches: TouchList, id: number) => {
+const findTouchById = (touches: React.TouchList, id: number): React.Touch | null => {
     for (let i = 0; i < touches.length; i += 1) {
-        const touch = touches[i];
-        if (touch.identifier === id) {
+        const touch = touches.item(i);
+        if (touch && touch.identifier === id) {
             return touch;
         }
     }