diff --git a/demo/build.rs b/demo/build.rs
index 9a16a34..69c632c 100644
--- a/demo/build.rs
+++ b/demo/build.rs
@@ -8,7 +8,7 @@
 
 fn main() -> miette::Result<()> {
     let path = std::path::PathBuf::from("src");
-    let mut b = autocxx_build::Builder::new("src/main.rs", &[&path]).build()?;
+    let mut b = autocxx_build::Builder::new("src/main.rs", [&path]).build()?;
     b.flag_if_supported("-std=c++14").compile("autocxx-demo");
 
     println!("cargo:rerun-if-changed=src/main.rs");