diff --git a/build.rs b/build.rs
index 79aee4e..0d45c7c 100644
--- a/build.rs
+++ b/build.rs
@@ -58,7 +58,7 @@ fn write_header(test_file: &mut File) {
     write!(
         test_file,
         r#"
-#![feature(exit_status_error)]
+#[feature(exit_status_error)]
 use organic::compare_document;
 use organic::parser::document;
 use organic::emacs_parse_org_document;