diff --git a/frontend/src/ts/test/funbox/funbox-functions.ts b/frontend/src/ts/test/funbox/funbox-functions.ts
index 7430c0b6bae6..8736db5357c4 100644
--- a/frontend/src/ts/test/funbox/funbox-functions.ts
+++ b/frontend/src/ts/test/funbox/funbox-functions.ts
@@ -348,7 +348,15 @@ const list: Partial<Record<FunboxName, FunboxFunctions>> = {
   },
   backwards: {
     alterText(word: string): string {
-      return word.split("").reverse().join("");
+      let chars;
+      if ("Segmenter" in Intl) {
+        const segmenter = new Intl.Segmenter();
+        const segments = segmenter.segment(word);
+        chars = [...segments].map((segment) => segment.segment);
+      } else {
+        chars = [...word];
+      }
+      return chars.reverse().join("");
     },
   },
   capitals: {