diff --git a/examples/reference-wrappers/build.rs b/examples/reference-wrappers/build.rs
index 64c573d..8e15dd0 100644
--- a/examples/reference-wrappers/build.rs
+++ b/examples/reference-wrappers/build.rs
@@ -10,9 +10,11 @@
     let path = std::path::PathBuf::from("src");
     let mut b = autocxx_build::Builder::new("src/main.rs", &[&path]).build()?;
     b.flag_if_supported("-std=c++14")
-    .file("src/input.cc").compile("autocxx-reference-wrapper-example");
+        .file("src/input.cc")
+        .compile("autocxx-reference-wrapper-example");
 
     println!("cargo:rerun-if-changed=src/main.rs");
     println!("cargo:rerun-if-changed=src/input.h");
+
     Ok(())
 }