diff --git a/include/libssh/curve25519.h b/include/libssh/curve25519.h
index a55f52c7..6d670a81 100644
--- a/include/libssh/curve25519.h
+++ b/include/libssh/curve25519.h
@@ -50,6 +50,7 @@ int crypto_scalarmult(unsigned char *q, const unsigned char *n, const unsigned c
 typedef unsigned char ssh_curve25519_pubkey[CURVE25519_PUBKEY_SIZE];
 typedef unsigned char ssh_curve25519_privkey[CURVE25519_PRIVKEY_SIZE];
 
+int ssh_curve25519_init(ssh_session session);
 
 int ssh_client_curve25519_init(ssh_session session);
 void ssh_client_curve25519_remove_callbacks(ssh_session session);
diff --git a/src/curve25519.c b/src/curve25519.c
index db6c6a9b..51316e8a 100644
--- a/src/curve25519.c
+++ b/src/curve25519.c
@@ -56,7 +56,8 @@ static struct ssh_packet_callbacks_struct ssh_curve25519_client_callbacks = {
     .user = NULL
 };
 
-static int ssh_curve25519_init(ssh_session session)
+int
+ssh_curve25519_init(ssh_session session)
 {
     int rc;
 #ifdef HAVE_LIBCRYPTO