diff --git a/src/lib.rs b/src/lib.rs
index b7d3902..a90857f 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -11,6 +11,7 @@
 
 #![no_std]
 #![cfg_attr(docsrs, feature(doc_cfg))]
+#![cfg_attr(feature = "simd_backend", feature(stdsimd))]
 //------------------------------------------------------------------------
 // Documentation:
 //------------------------------------------------------------------------