Wrong path in the readme

diff --git a/README.md b/README.md
index 24c5609355b044ce4d9241891f3c3f19bf60291d..6123dc29c1b74d395c927df6721cf7aba75131f9 100644 (file)
--- a/README.md
+++ b/README.md
@@ -159,7 +159,8 @@ If you need Ed25519 compatibility, you need to do the following:
 
 - Compile Monocypher.c with option -DED25519_SHA512.
 - Link the final program with a suitable SHA-512 implementation.  You
-  can use the `sha512.c` and `sha512.h` files provided in `src/`.
+  can use the `sha512.c` and `sha512.h` files provided in
+  `src/optional`.
 
 Note that even though the default hash (Blake2b) is not "standard",
 you can still upgrade to faster implementations if you really need to.