diff --git a/frontend/src/utilities/input.ts b/frontend/src/utilities/input.ts
index 6c4a4c3a..d695146b 100644
--- a/frontend/src/utilities/input.ts
+++ b/frontend/src/utilities/input.ts
@@ -106,7 +106,7 @@ export async function onMouseScroll(e: WheelEvent) {
 	const target = e.target && (e.target as HTMLElement);
 	const inCanvas = target && target.closest(".canvas");
 
-	const horizontalScrollableElement = e.target instanceof HTMLElement && e.target.closest(".scrollable-x");
+	const horizontalScrollableElement = e.target instanceof Element && e.target.closest(".scrollable-x");
 	if (horizontalScrollableElement && e.deltaY !== 0) {
 		horizontalScrollableElement.scrollTo(horizontalScrollableElement.scrollLeft + e.deltaY, 0);
 		return;