3 files changed, 3 insertions, 3 deletions
diff --git a/src/lib/asio/asio_async_handshake_op.h b/src/lib/asio/asio_async_handshake_op.h
index 4c5f8385b..3f3bea2ab 100644
--- a/src/lib/asio/asio_async_handshake_op.h
+++ b/src/lib/asio/asio_async_handshake_op.h
@@ -24,7 +24,7 @@ struct AsyncHandshakeOperation
            handler_(std::move(right.handler_)) {}
 
       ~AsyncHandshakeOperation() = default;
-      AsyncHandshakeOperation(AsyncHandshakeOperation&) = delete;
+      AsyncHandshakeOperation(AsyncHandshakeOperation const&) = delete;
 
       void operator()(boost::system::error_code ec,
                       std::size_t bytesTransferred = 0, int start = 0)
diff --git a/src/lib/asio/asio_async_read_op.h b/src/lib/asio/asio_async_read_op.h
index b9f8df600..84d002a6b 100644
--- a/src/lib/asio/asio_async_read_op.h
+++ b/src/lib/asio/asio_async_read_op.h
@@ -22,7 +22,7 @@ struct AsyncReadOperation
            buffers_(right.buffers_) {}
 
       ~AsyncReadOperation() = default;
-      AsyncReadOperation(AsyncReadOperation&) = delete;
+      AsyncReadOperation(AsyncReadOperation const&) = delete;
 
       void operator()(boost::system::error_code ec,
                       std::size_t bytes_transferred = ~std::size_t(0))
diff --git a/src/lib/asio/asio_async_write_op.h b/src/lib/asio/asio_async_write_op.h
index e1aeeb0bd..9bbe74a15 100644
--- a/src/lib/asio/asio_async_write_op.h
+++ b/src/lib/asio/asio_async_write_op.h
@@ -21,7 +21,7 @@ struct AsyncWriteOperation
         plainBytesTransferred_(right.plainBytesTransferred_) {}
 
    ~AsyncWriteOperation() = default;
-   AsyncWriteOperation(AsyncWriteOperation&) = delete;
+   AsyncWriteOperation(AsyncWriteOperation const&) = delete;
 
    void operator()(boost::system::error_code ec,
                    std::size_t bytes_transferred = ~std::size_t(0))