Cast to avoid VC warning

1 files changed, 1 insertions, 1 deletions

diff --git a/src/kdf/ssl_prf/prf_ssl3.cpp b/src/kdf/ssl_prf/prf_ssl3.cpp
index 4f7325bde..72cf023e2 100644
--- a/src/kdf/ssl_prf/prf_ssl3.cpp
+++ b/src/kdf/ssl_prf/prf_ssl3.cpp
@@ -30,7 +30,7 @@ OctetString next_hash(size_t where, size_t want,
    const byte ASCII_A_CHAR = 0x41;
 
    for(size_t j = 0; j != where + 1; j++)
-      sha1.update(ASCII_A_CHAR + where);
+     sha1.update(static_cast<byte>(ASCII_A_CHAR + where));
    sha1.update(secret, secret_len);
    sha1.update(seed, seed_len);
    SecureVector<byte> sha1_hash = sha1.final();