diff --git a/curve25519-dalek/src/lib.rs b/curve25519-dalek/src/lib.rs
index 9097a9a8f..3b11e3add 100644
--- a/curve25519-dalek/src/lib.rs
+++ b/curve25519-dalek/src/lib.rs
@@ -10,7 +10,10 @@
 // - Henry de Valence <hdevalence@hdevalence.ca>
 
 #![no_std]
-#![cfg_attr(all(curve25519_dalek_backend = "simd", nightly), feature(stdsimd))]
+#![cfg_attr(
+    all(curve25519_dalek_backend = "simd", nightly),
+    feature(stdarch_x86_avx512)
+)]
 #![cfg_attr(
     all(curve25519_dalek_backend = "simd", nightly),
     feature(avx512_target_feature)