diff --git a/web/src/components/timeline/SummaryTimeline.tsx b/web/src/components/timeline/SummaryTimeline.tsx
index 54573c4f4..db1200546 100644
--- a/web/src/components/timeline/SummaryTimeline.tsx
+++ b/web/src/components/timeline/SummaryTimeline.tsx
@@ -187,7 +187,7 @@ export function SummaryTimeline({
       e.stopPropagation();
 
       let clientY;
-      if (e.nativeEvent instanceof TouchEvent) {
+      if ("TouchEvent" in window && e.nativeEvent instanceof TouchEvent) {
         clientY = e.nativeEvent.touches[0].clientY;
       } else if (e.nativeEvent instanceof MouseEvent) {
         clientY = e.nativeEvent.clientY;
@@ -238,7 +238,7 @@ export function SummaryTimeline({
       setIsDragging(true);
 
       let clientY;
-      if (e.nativeEvent instanceof TouchEvent) {
+      if ("TouchEvent" in window && e.nativeEvent instanceof TouchEvent) {
         clientY = e.nativeEvent.touches[0].clientY;
       } else if (e.nativeEvent instanceof MouseEvent) {
         clientY = e.nativeEvent.clientY;
@@ -276,7 +276,7 @@ export function SummaryTimeline({
         }
         e.stopPropagation();
         let clientY;
-        if (e instanceof TouchEvent) {
+        if ("TouchEvent" in window && e instanceof TouchEvent) {
           clientY = e.touches[0].clientY;
         } else if (e instanceof MouseEvent) {
           clientY = e.clientY;
diff --git a/web/src/hooks/use-draggable-element.ts b/web/src/hooks/use-draggable-element.ts
index f18cae152..8cc61d451 100644
--- a/web/src/hooks/use-draggable-element.ts
+++ b/web/src/hooks/use-draggable-element.ts
@@ -87,7 +87,7 @@ function useDraggableElement({
   const getClientYPosition = useCallback(
     (e: MouseEvent | TouchEvent) => {
       let clientY;
-      if (e instanceof TouchEvent) {
+      if ("TouchEvent" in window && e instanceof TouchEvent) {
         clientY = e.touches[0].clientY;
       } else if (e instanceof MouseEvent) {
         clientY = e.clientY;
@@ -113,7 +113,7 @@ function useDraggableElement({
       setIsDragging(true);
 
       let clientY;
-      if (e.nativeEvent instanceof TouchEvent) {
+      if ("TouchEvent" in window && e.nativeEvent instanceof TouchEvent) {
         clientY = e.nativeEvent.touches[0].clientY;
       } else if (e.nativeEvent instanceof MouseEvent) {
         clientY = e.nativeEvent.clientY;
diff --git a/web/src/views/live/LiveCameraView.tsx b/web/src/views/live/LiveCameraView.tsx
index bc27234bb..aef3453e7 100644
--- a/web/src/views/live/LiveCameraView.tsx
+++ b/web/src/views/live/LiveCameraView.tsx
@@ -98,7 +98,7 @@ export default function LiveCameraView({ camera }: LiveCameraViewProps) {
 
       let clientX;
       let clientY;
-      if (e.nativeEvent instanceof TouchEvent) {
+      if ("TouchEvent" in window && e.nativeEvent instanceof TouchEvent) {
         clientX = e.nativeEvent.touches[0].clientX;
         clientY = e.nativeEvent.touches[0].clientY;
       } else if (e.nativeEvent instanceof MouseEvent) {