diff --git a/Modules/_ctypes/callproc.c b/Modules/_ctypes/callproc.c
index a13c89fa82..8a24ea9047 100644
--- a/Modules/_ctypes/callproc.c
+++ b/Modules/_ctypes/callproc.c
@@ -1427,6 +1427,8 @@ static PyObject *py_dl_sym(PyObject *self, PyObject *args)
     if (!PyArg_ParseTuple(args, "O&s:dlsym",
                           &_parse_voidp, &handle, &name))
         return NULL;
+    if (PySys_Audit("ctypes.dlsym", "O&s", PyLong_FromVoidPtr, handle, name) < 0)
+        return NULL;
     ptr = ctypes_dlsym((void*)handle, name);
     if (!ptr) {
         PyErr_SetString(PyExc_OSError,