diff --git a/src/lib.rs b/src/lib.rs
index 1508086ff..2baeef375 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -216,7 +216,6 @@
 #![feature(
     repr_simd,
     rustc_attrs,
-    const_fn,
     platform_intrinsics,
     stdsimd,
     aarch64_target_feature,