diff --git a/src/arithmetic/curves.rs b/src/arithmetic/curves.rs
index d718fc2..ca94e58 100644
--- a/src/arithmetic/curves.rs
+++ b/src/arithmetic/curves.rs
@@ -134,10 +134,8 @@ pub trait CurveAffine:
 #[cfg_attr(docsrs, doc(cfg(feature = "alloc")))]
 #[derive(Clone, Copy, Debug, Default)]
 pub struct Coordinates<C: CurveAffine> {
-    /// x-coordinate of the EC point.
-    pub x: C::Base,
-    /// y-coordinate of the EC point.
-    pub y: C::Base,
+    pub(crate) x: C::Base,
+    pub(crate) y: C::Base,
 }
 
 #[cfg(feature = "alloc")]