diff --git a/function-epilogue/demo/main.rs b/function-epilogue/demo/main.rs
index d2f856d..7c017bc 100644
--- a/function-epilogue/demo/main.rs
+++ b/function-epilogue/demo/main.rs
@@ -35,4 +35,6 @@ impl S {
     }
 }
 
-fn main() {}
+fn main() {
+    let _ = S;
+}