diff --git a/utralib/build.rs b/utralib/build.rs
index a68a58d7d..2c9957334 100644
--- a/utralib/build.rs
+++ b/utralib/build.rs
@@ -1,9 +1,10 @@
 use std::env;
 
 fn main() {
-    let svd_file = env::var("XOUS_SVD_FILE").expect("Set the environment variable `XOUS_SVD_FILE` to point to an SVD file");    
+    let svd_file = env::var("XOUS_SVD_FILE")
+        .expect("Set the environment variable `XOUS_SVD_FILE` to point to an SVD file");
     println!("cargo:rerun-if-env-changed=XOUS_SVD_FILE");
-    println!("cargo:rerun-if-env-changed={}", svd_file);
+    println!("cargo:rerun-if-changed={}", svd_file);
 
     let src_file = std::fs::File::open(svd_file).expect("couldn't open src file");
     let mut dest_file = std::fs::File::create("src/generated.rs").expect("couldn't open dest file");