diff --git a/util/build.rs b/util/build.rs
index f033e52e0..1ec89f704 100644
--- a/util/build.rs
+++ b/util/build.rs
@@ -26,12 +26,12 @@ use std::path::Path;
 fn main() {
 	vergen(OutputFns::all()).unwrap();
 	let out_dir = env::var("OUT_DIR").unwrap();
-    let dest_path = Path::new(&out_dir).join("rustc_version.rs");
-    let mut f = File::create(&dest_path).unwrap();
+	let dest_path = Path::new(&out_dir).join("rustc_version.rs");
+	let mut f = File::create(&dest_path).unwrap();
 	f.write_all(format!("
 		/// Returns compiler version.
-        pub fn rustc_version() -> &'static str {{
+		pub fn rustc_version() -> &'static str {{
 			\"{}\"
-        }}
-    ", rustc_version::version()).as_bytes()).unwrap();
+		}}
+	", rustc_version::version()).as_bytes()).unwrap();
 }