diff --git a/src/libstd/ffi/os_str.rs b/src/libstd/ffi/os_str.rs
index 4d7292b6eb417..1d14b141778f0 100644
--- a/src/libstd/ffi/os_str.rs
+++ b/src/libstd/ffi/os_str.rs
@@ -189,7 +189,7 @@ impl OsStr {
         self.inner.to_string_lossy()
     }
 
-    /// Copy the slice into an onwed `OsString`.
+    /// Copy the slice into an owned `OsString`.
     pub fn to_os_string(&self) -> OsString {
         OsString { inner: self.inner.to_owned() }
     }