diff --git a/src/python/pybind11/debug.cc b/src/python/pybind11/debug.cc
index 69c497c..84673f1 100644
--- a/src/python/pybind11/debug.cc
+++ b/src/python/pybind11/debug.cc
@@ -83,10 +83,6 @@
     m_debug
         .def("getAllFlagsVersion", []() { return Debug::allFlagsVersion; })
         .def("allFlags", &Debug::allFlags, py::return_value_policy::reference)
-        .def("findFlag", &Debug::findFlag)
-        .def("setDebugFlag", &setDebugFlag)
-        .def("clearDebugFlag", &clearDebugFlag)
-        .def("dumpDebugFlags", &dumpDebugFlags)
 
         .def("schedBreak", &schedBreak)
         .def("setRemoteGDBPort", &setRemoteGDBPort)