diff --git a/crates/core_simd/src/lib.rs b/crates/core_simd/src/lib.rs
index 1d8cdad8900a..037779200b85 100644
--- a/crates/core_simd/src/lib.rs
+++ b/crates/core_simd/src/lib.rs
@@ -1,7 +1,5 @@
 #![cfg_attr(not(feature = "std"), no_std)]
-#![allow(incomplete_features)]
 #![feature(
-    adt_const_params,
     const_fn_trait_bound,
     const_panic,
     platform_intrinsics,
@@ -11,6 +9,7 @@
     stdsimd
 )]
 #![cfg_attr(feature = "generic_const_exprs", feature(generic_const_exprs))]
+#![cfg_attr(feature = "generic_const_exprs", allow(incomplete_features))]
 #![warn(missing_docs)]
 #![deny(unsafe_op_in_unsafe_fn)]
 #![unstable(feature = "portable_simd", issue = "86656")]