diff --git a/test/default/scalarmult_ed25519.c b/test/default/scalarmult_ed25519.c
index 07e5e9e0..3ef7f96b 100644
--- a/test/default/scalarmult_ed25519.c
+++ b/test/default/scalarmult_ed25519.c
@@ -42,6 +42,9 @@ main(void)
     sodium_free(p);
     sodium_free(n);
 
+    assert(crypto_scalarmult_ed25519_BYTES == crypto_scalarmult_ed25519_bytes());
+    assert(crypto_scalarmult_ed25519_SCALARBYTES == crypto_scalarmult_ed25519_scalarbytes());
+
     printf("OK\n");
 
     return 0;