diff --git a/src/components/dynamic/UInt8Array.vue b/src/components/dynamic/UInt8Array.vue
index f54a68ca..127f582a 100644
--- a/src/components/dynamic/UInt8Array.vue
+++ b/src/components/dynamic/UInt8Array.vue
@@ -12,7 +12,11 @@ const text = computed(() => {
     case 'base64':
       return toBase64(props.value);
     default:
-      return fromAscii(props.value);
+      try {
+        return fromAscii(props.value);
+      } catch {
+        return 'Invalid Utf8';
+      }
   }
 });
 function change(value: string) {