diff --git a/src/bind/solution/solution.cpp b/src/bind/solution/solution.cpp
index 18734de..73cf9b5 100644
--- a/src/bind/solution/solution.cpp
+++ b/src/bind/solution/solution.cpp
@@ -103,7 +103,7 @@ void init_solution(py::module_ &m) {
              py::scoped_ostream_redirect stream(
                  std::cout, py::module_::import("sys").attr("stdout"));
              vroom::io::write_to_json(solution, geometry, "");
-           }, py::arg("solution"), py::arg("geometry") = false)
+           })
       .def_readwrite("code", &vroom::Solution::code)
       .def_readwrite("error", &vroom::Solution::error)
       .def_readonly("summary", &vroom::Solution::summary)