1 files changed, 2 insertions, 2 deletions
diff --git a/src/stream/ofb/ofb.cpp b/src/stream/ofb/ofb.cpp
index 332673153..6fc8e4b68 100644
--- a/src/stream/ofb/ofb.cpp
+++ b/src/stream/ofb/ofb.cpp
@@ -68,14 +68,14 @@ void OFB::cipher(const byte in[], byte out[], u32bit length)
    {
    while(length >= buffer.size() - position)
       {
-      xor_buf(out, in, buffer.begin() + position, buffer.size() - position);
+      xor_buf(out, in, &buffer[position], buffer.size() - position);
       length -= (buffer.size() - position);
       in += (buffer.size() - position);
       out += (buffer.size() - position);
       permutation->encrypt(buffer);
       position = 0;
       }
-   xor_buf(out, in, buffer.begin() + position, length);
+   xor_buf(out, in, &buffer[position], length);
    position += length;
    }