diff --git a/crates/core_simd/Cargo.toml b/crates/core_simd/Cargo.toml
index d2ff5f3b1b1..8877c6df66e 100644
--- a/crates/core_simd/Cargo.toml
+++ b/crates/core_simd/Cargo.toml
@@ -9,7 +9,7 @@ categories = ["hardware-support", "no-std"]
 license = "MIT OR Apache-2.0"
 
 [features]
-default = ["std", "generic_const_exprs"]
+default = []
 std = []
 generic_const_exprs = []
 
diff --git a/crates/core_simd/tests/round.rs b/crates/core_simd/tests/round.rs
index 53732329237..7feb0320a16 100644
--- a/crates/core_simd/tests/round.rs
+++ b/crates/core_simd/tests/round.rs
@@ -9,7 +9,6 @@ macro_rules! float_rounding_test {
             type Scalar = $scalar;
             type IntScalar = $int_scalar;
 
-            #[cfg(feature = "std")]
             test_helpers::test_lanes! {
                 fn ceil<const LANES: usize>() {
                     test_helpers::test_unary_elementwise(
diff --git a/crates/std_float/Cargo.toml b/crates/std_float/Cargo.toml
index 82f66b8dcb7..84c69774cbd 100644
--- a/crates/std_float/Cargo.toml
+++ b/crates/std_float/Cargo.toml
@@ -6,7 +6,7 @@ edition = "2021"
 # See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
 
 [dependencies]
-core_simd = { path = "../core_simd" }
+core_simd = { path = "../core_simd", default-features = false }
 
 [features]
 default = ["as_crate"]