diff --git a/frontend/src/ts/test/caret.ts b/frontend/src/ts/test/caret.ts
index 8a5126b42..a7dc6ddba 100644
--- a/frontend/src/ts/test/caret.ts
+++ b/frontend/src/ts/test/caret.ts
@@ -130,8 +130,8 @@ export async function updatePosition(noAnim = false): Promise<void> {
     Config.fontSize * Numbers.convertRemToPixels(1);
 
   const letterWidth =
-    currentLetter?.offsetWidth ??
-    previousLetter?.offsetWidth ??
+    currentLetter?.offsetWidth ||
+    previousLetter?.offsetWidth ||
     lastWordLetter?.offsetWidth;
 
   const diff = letterHeight - caret.offsetHeight;