diff --git a/members/what-is/src/main.rs b/members/what-is/src/main.rs
index dcafa2b..3f1f467 100644
--- a/members/what-is/src/main.rs
+++ b/members/what-is/src/main.rs
@@ -13,6 +13,7 @@ fn main() {
     items.push(String::from("foo"));
     items.push(String::from("bar"));
     items.push(String::from("文学"));
+    items.push(String::from("qux"));
     investigate!(String, items);
 }