Pass by const reference so larger structs can be used with xor_into_buf template

1 files changed, 1 insertions, 1 deletions

diff --git a/src/utils/xor_buf.h b/src/utils/xor_buf.h
index bbc6d3eec..74bfeef0b 100644
--- a/src/utils/xor_buf.h
+++ b/src/utils/xor_buf.h
@@ -78,7 +78,7 @@ u32bit xor_into_buf(byte buf[], u32bit buf_i, u32bit length,
 */
 template<typename T>
 u32bit xor_into_buf(byte buf[], u32bit buf_i,
-                    u32bit length, T in)
+                    u32bit length, const T& in)
    {
    return xor_into_buf(buf, buf_i, length, &in, sizeof(in));
    }