lib/kdf: Convert &vec[0] to vec.data()

1 files changed, 1 insertions, 1 deletions

diff --git a/src/lib/kdf/kdf2/kdf2.cpp b/src/lib/kdf/kdf2/kdf2.cpp
index f1a702887..9deb1a22f 100644
--- a/src/lib/kdf/kdf2/kdf2.cpp
+++ b/src/lib/kdf/kdf2/kdf2.cpp
@@ -28,7 +28,7 @@ size_t KDF2::kdf(byte key[], size_t key_len,
       m_hash->final(h);
 
       const size_t added = std::min(h.size(), key_len - offset);
-      copy_mem(&key[offset], &h[0], added);
+      copy_mem(&key[offset], h.data(), added);
       offset += added;
       }