diff --git a/src/libstd/path.rs b/src/libstd/path.rs
index ec96157547383..d0ae67017e9f1 100644
--- a/src/libstd/path.rs
+++ b/src/libstd/path.rs
@@ -1654,6 +1654,7 @@ impl AsRef<OsStr> for PathBuf {
 /// assert_eq!(extension, Some(OsStr::new("txt")));
 /// ```
 #[stable(feature = "rust1", since = "1.0.0")]
+#[repr(C)]
 pub struct Path {
     inner: OsStr,
 }