diff --git a/changelog/2820.added.md b/changelog/2820.added.md
new file mode 100644
index 0000000000..6157405930
--- /dev/null
+++ b/changelog/2820.added.md
@@ -0,0 +1 @@
+Add `ptsname_r` for GNU/Hurd
diff --git a/src/pty.rs b/src/pty.rs
index ab449e4ab7..b459400283 100644
--- a/src/pty.rs
+++ b/src/pty.rs
@@ -212,7 +212,7 @@ pub unsafe fn ptsname(fd: &PtyMaster) -> Result<String> {
 ///
 /// This value is useful for opening the slave ptty once the master has already been opened with
 /// `posix_openpt()`.
-#[cfg(linux_android)]
+#[cfg(any(linux_android, target_os = "hurd"))]
 #[inline]
 pub fn ptsname_r(fd: &PtyMaster) -> Result<String> {
     let mut name_buf = Vec::<libc::c_char>::with_capacity(64);