diff --git a/src/lib.rs b/src/lib.rs
index 8c92e51..6712dfc 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -1,4 +1,4 @@
-#![no_std]
+#![cfg_attr(not(feature = "std"), no_std)]
 extern crate alloc;
 
 use alloc::{
@@ -310,6 +310,13 @@ impl Borrow<str> for SmolStr {
     }
 }
 
+#[cfg(feature = "std")]
+impl AsRef<std::ffi::OsStr> for SmolStr {
+    fn as_ref(&self) -> &std::ffi::OsStr {
+        (&**self).as_ref()
+    }
+}
+
 impl FromStr for SmolStr {
     type Err = Infallible;