diff --git a/python/src/bit.cpp b/python/src/bit.cpp
index a128aab4f..441366657 100644
--- a/python/src/bit.cpp
+++ b/python/src/bit.cpp
@@ -20,7 +20,7 @@ void init_bit(py::module &m) {
         .def(py::init<uint32_t>())
         .def(py::init<const RegisterAddress &>())
         .def("__repr__", &RegisterAddress::str)
-        .def("str", &RegisterAddress::str)
+        .def("__str__", &RegisterAddress::str)
         .def("value", &RegisterAddress::value)
         .def(py::self == py::self)
         .def(py::self != py::self);
@@ -29,7 +29,7 @@ void init_bit(py::module &m) {
         .def(py::init())
         .def(py::init<RegisterAddress, uint32_t>())
         .def("__repr__", &BitAddress::str)
-        .def("str", &BitAddress::str)
+        .def("__str__", &BitAddress::str)
         .def("address", &BitAddress::address)
         .def("bitPosition", &BitAddress::bitPosition)
         .def(py::self == py::self)
@@ -40,7 +40,7 @@ void init_bit(py::module &m) {
         .def(py::init<uint32_t>())
         .def(py::init<const RegisterValue &>())
         .def("__repr__", &RegisterValue::str)
-        .def("str", &RegisterValue::str)
+        .def("__str__", &RegisterValue::str)
         .def("value", &RegisterValue::value)
         .def(py::self == py::self)
         .def(py::self != py::self)