diff --git a/boring/src/ssl/mod.rs b/boring/src/ssl/mod.rs
index 7e7950e7..e3821a51 100644
--- a/boring/src/ssl/mod.rs
+++ b/boring/src/ssl/mod.rs
@@ -2890,7 +2890,7 @@ impl SslRef {
             if cfg!(feature = "kx-client-nist-required") {
                 "P-256:P-384:P-521:P256Kyber768Draft00"
             } else {
-                "X25519:P-256:P-384:P-521:X25519Kyber768Draft00:P256Kyber768Draft00"
+                "X25519:P-256:P-384:P-521:X25519MLKEM768:X25519Kyber768Draft00:P256Kyber768Draft00"
             }
         } else {
             if cfg!(feature = "kx-client-nist-required") {
@@ -2906,8 +2906,10 @@ impl SslRef {
 
     #[cfg(feature = "kx-safe-default")]
     fn server_set_default_curves_list(&mut self) {
-        self.set_curves_list("X25519Kyber768Draft00:P256Kyber768Draft00:X25519:P-256:P-384")
-            .expect("invalid default server curves list");
+        self.set_curves_list(
+            "X25519MLKEM768:X25519Kyber768Draft00:P256Kyber768Draft00:X25519:P-256:P-384",
+        )
+        .expect("invalid default server curves list");
     }
 
     /// Returns the [`SslCurve`] used for this `SslRef`.