diff --git a/std/src/sys/pal/unix/os.rs b/std/src/sys/pal/unix/os.rs
index 7db037d02eba0..9750c32eed5e5 100644
--- a/std/src/sys/pal/unix/os.rs
+++ b/std/src/sys/pal/unix/os.rs
@@ -704,7 +704,7 @@ pub fn page_size() -> usize {
 //
 // [posix_confstr]:
 //     https://pubs.opengroup.org/onlinepubs/9699919799/functions/confstr.html
-#[cfg(any(target_os = "macos", target_os = "ios", target_os = "tvos", target_os = "watchos"))]
+#[cfg(target_vendor = "apple")]
 fn confstr(key: c_int, size_hint: Option<usize>) -> io::Result<OsString> {
     let mut buf: Vec<u8> = Vec::new();
     let mut bytes_needed_including_nul = size_hint
@@ -765,7 +765,7 @@ fn darwin_temp_dir() -> PathBuf {
 pub fn temp_dir() -> PathBuf {
     crate::env::var_os("TMPDIR").map(PathBuf::from).unwrap_or_else(|| {
         cfg_if::cfg_if! {
-            if #[cfg(any(target_os = "macos", target_os = "ios", target_os = "tvos", target_os = "watchos"))] {
+            if #[cfg(target_vendor = "apple")] {
                 darwin_temp_dir()
             } else if #[cfg(target_os = "android")] {
                 PathBuf::from("/data/local/tmp")
diff --git a/std/src/sys/pal/unix/os/tests.rs b/std/src/sys/pal/unix/os/tests.rs
index ab9742fc677e9..a84086037ce0b 100644
--- a/std/src/sys/pal/unix/os/tests.rs
+++ b/std/src/sys/pal/unix/os/tests.rs
@@ -25,7 +25,7 @@ fn test_parse_glibc_version() {
 // Smoke check `confstr`, do it for several hint values, to ensure our resizing
 // logic is correct.
 #[test]
-#[cfg(target_os = "macos")]
+#[cfg(target_vendor = "apple")]
 fn test_confstr() {
     for key in [libc::_CS_DARWIN_USER_TEMP_DIR, libc::_CS_PATH] {
         let value_nohint = super::confstr(key, None).unwrap_or_else(|e| {