diff --git a/simd/src/lib.rs b/simd/src/lib.rs
index cbffc2a4..a05817f2 100644
--- a/simd/src/lib.rs
+++ b/simd/src/lib.rs
@@ -9,7 +9,8 @@
 // except according to those terms.
 
 #![cfg_attr(pf_rustc_nightly, feature(link_llvm_intrinsics, platform_intrinsics))]
-#![cfg_attr(pf_rustc_nightly, feature(simd_ffi, stdsimd))]
+#![cfg_attr(all(target_arch = "aarch64", pf_rustc_nightly), feature(stdarch_arm_crc32))]
+#![cfg_attr(pf_rustc_nightly, feature(simd_ffi))]
 
 //! A minimal SIMD abstraction, usable outside of Pathfinder.