diff --git a/nalgebra-glm/src/traits.rs b/nalgebra-glm/src/traits.rs
index a09a95f2..8619e59d 100644
--- a/nalgebra-glm/src/traits.rs
+++ b/nalgebra-glm/src/traits.rs
@@ -3,7 +3,7 @@ use num::{Bounded, Signed};
 
 use na::Scalar;
 use simba::scalar::{ClosedAdd, ClosedMul, ClosedSub, RealField};
-use std::cmp::PartialOrd;
+use core::cmp::PartialOrd;
 
 /// A number that can either be an integer or a float.
 pub trait Number: