diff --git a/test/default/stream2.c b/test/default/stream2.c
index d36bcfbf..64ce7b89 100644
--- a/test/default/stream2.c
+++ b/test/default/stream2.c
@@ -23,5 +23,9 @@ int main(void)
   crypto_stream_salsa20(output,4194304,noncesuffix,secondkey);
   crypto_hash_sha256(h,output,sizeof output);
   for (i = 0;i < 32;++i) printf("%02x",h[i]); printf("\n");
+
+  assert(crypto_stream_salsa20_keybytes() > 0U);
+  assert(crypto_stream_salsa20_noncebytes() > 0U);
+
   return 0;
 }