diff --git a/build.rs b/build.rs
index 5b72d0f21..e0edd0e2a 100644
--- a/build.rs
+++ b/build.rs
@@ -86,7 +86,7 @@ fn detect_cfgs(target: Target) {
         ),
         ("bsd", &detect_bsd),
         ("gettext", &have_gettext),
-        // See if the system headers provide the thread-safe localeconv_l(3) alternative to localeconv(3).
+        // See if libc supports the thread-safe localeconv_l(3) alternative to localeconv(3).
         ("localeconv_l", &|target| {
             Ok(target.has_symbol_in::<String>("localeconv_l", &[]))
         }),
@@ -112,7 +112,7 @@ fn detect_cfgs(target: Target) {
 }
 
 /// Detect if we're being compiled for a BSD-derived OS, allowing targeting code conditionally with
-/// `#[cfg(feature = "bsd")]`.
+/// `#[cfg(bsd)]`.
 ///
 /// Rust offers fine-grained conditional compilation per-os for the popular operating systems, but
 /// doesn't necessarily include less-popular forks nor does it group them into families more