diff --git a/posts/2015-09-02-set-up-rust.md b/posts/2015-09-02-set-up-rust.md
index 6d1d7b0c..a1e91773 100644
--- a/posts/2015-09-02-set-up-rust.md
+++ b/posts/2015-09-02-set-up-rust.md
@@ -40,7 +40,7 @@ The `package` section contains required project metadata such as the [semantic c
 Now we place our root source file in `src/lib.rs`:
 
 ```rust
-#![feature(no_std, lang_items)]
+#![feature(lang_items)]
 #![no_std]
 
 #[no_mangle]
diff --git a/src/lib.rs b/src/lib.rs
index b2e54a14..2ffc7daa 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -12,7 +12,7 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-#![feature(no_std, lang_items)]
+#![feature(lang_items)]
 #![feature(const_fn, unique, core_str_ext, iter_cmp)]
 #![no_std]