diff --git a/include/http_connection.h b/include/http_connection.h
index 4d9f035d6..137419d1d 100644
--- a/include/http_connection.h
+++ b/include/http_connection.h
@@ -487,7 +487,7 @@ namespace crow
                 [&](const boost::system::error_code& ec, std::size_t bytes_transferred)
                 {
                     is_writing = false;
-					res.clear();
+                    res.clear();
                     res_body_copy_.clear();
                     if (!ec)
                     {