diff --git a/serde-json-test/src/main.rs b/serde-json-test/src/main.rs
index c350f64..af6bf5f 100644
--- a/serde-json-test/src/main.rs
+++ b/serde-json-test/src/main.rs
@@ -23,7 +23,7 @@ struct TestStruct {
 fn main() -> Result<()> {
     let serialized = serde_json::to_string(&TestStruct{
         ty: TestEnum::TypeA,
-    }).unwrap();
+    })?;
 
     println!("{}", serialized);