diff --git a/src/x25519.rs b/src/x25519.rs
index 9fbda07..3244899 100644
--- a/src/x25519.rs
+++ b/src/x25519.rs
@@ -29,7 +29,7 @@ use zeroize::Zeroize;
     feature = "serde",
     derive(our_serde::Serialize, our_serde::Deserialize)
 )]
-#[derive(Copy, Clone, Debug)]
+#[derive(PartialEq, Eq, Hash, Copy, Clone, Debug)]
 pub struct PublicKey(pub(crate) MontgomeryPoint);
 
 impl From<[u8; 32]> for PublicKey {