diff --git a/Objects/methodobject.c b/Objects/methodobject.c
index 3ce1560..c780904 100644
--- a/Objects/methodobject.c
+++ b/Objects/methodobject.c
@@ -454,9 +454,11 @@
 static PyObject *
 cfunction_call(PyObject *func, PyObject *args, PyObject *kwargs)
 {
-    assert(!PyErr_Occurred());
     assert(kwargs == NULL || PyDict_Check(kwargs));
 
+    PyThreadState *tstate = _PyThreadState_GET();
+    assert(!_PyErr_Occurred(tstate));
+
     int flags = PyCFunction_GET_FLAGS(func);
     if (!(flags & METH_VARARGS)) {
         /* If this is not a METH_VARARGS function, delegate to vectorcall */
@@ -474,11 +476,12 @@
     }
     else {
         if (kwargs != NULL && PyDict_GET_SIZE(kwargs) != 0) {
-            PyErr_Format(PyExc_TypeError, "%.200s() takes no keyword arguments",
-                         ((PyCFunctionObject*)func)->m_ml->ml_name);
+            _PyErr_Format(tstate, PyExc_TypeError,
+                          "%.200s() takes no keyword arguments",
+                          ((PyCFunctionObject*)func)->m_ml->ml_name);
             return NULL;
         }
         result = meth(self, args);
     }
-    return _Py_CheckFunctionResult(func, result, NULL);
+    return _Py_CheckFunctionResult(tstate, func, result, NULL);
 }