diff --git a/crates/core_simd/src/vector.rs b/crates/core_simd/src/vector.rs
index 475b7533a8b..b1be2a2a114 100644
--- a/crates/core_simd/src/vector.rs
+++ b/crates/core_simd/src/vector.rs
@@ -266,6 +266,7 @@ impl<const N: usize> Swizzle<1, N> for Splat {
     /// let v = u32x4::from_slice(&source);
     /// assert_eq!(v.as_array(), &[1, 2, 3, 4]);
     /// ```
+    #[must_use]
     #[inline]
     #[track_caller]
     pub const fn from_slice(slice: &[T]) -> Self {