diff --git a/third_party/python/Include/abstract.h b/third_party/python/Include/abstract.h
index 0655e9cb9..fb76b70c6 100644
--- a/third_party/python/Include/abstract.h
+++ b/third_party/python/Include/abstract.h
@@ -36,8 +36,12 @@ PyObject *_PyObject_FastCallKeywords(PyObject *func, PyObject **args,
 PyObject *_PyObject_Call_Prepend(PyObject *func, PyObject *obj, PyObject *args,
                                  PyObject *kwargs);
 
+#ifdef USE_CHECKFUNCRESULT
 PyObject *_Py_CheckFunctionResult(PyObject *func, PyObject *result,
                                   const char *where);
+#else
+#define _Py_CheckFunctionResult(func, result, where) (result)
+#endif
 #endif /* Py_LIMITED_API */
 
 PyObject *PyObject_CallObject(PyObject *callable_object, PyObject *args);
diff --git a/third_party/python/Objects/abstract.c b/third_party/python/Objects/abstract.c
index 0de4da0b0..4082112d1 100644
--- a/third_party/python/Objects/abstract.c
+++ b/third_party/python/Objects/abstract.c
@@ -2210,6 +2210,7 @@ PyObject_CallObject(PyObject *o, PyObject *a)
     return PyEval_CallObjectWithKeywords(o, a, NULL);
 }
 
+#ifdef USE_CHECKFUNCRESULT
 PyObject*
 _Py_CheckFunctionResult(PyObject *func, PyObject *result, const char *where)
 {
@@ -2257,6 +2258,7 @@ _Py_CheckFunctionResult(PyObject *func, PyObject *result, const char *where)
     }
     return result;
 }
+#endif
 
 PyObject *
 PyObject_Call(PyObject *func, PyObject *args, PyObject *kwargs)
diff --git a/third_party/python/python.mk b/third_party/python/python.mk
index bd0497e1a..660b58245 100644
--- a/third_party/python/python.mk
+++ b/third_party/python/python.mk
@@ -2167,6 +2167,7 @@ THIRD_PARTY_PYTHON_STDLIB_PYS =											\
 ifeq ($(MODE), dbg)
 	THIRD_PARTY_PYTHON_FLAGS += \
 		-DUSE_TRACEMALLOC		\
+		-DUSE_CHECKFUNCRESULT	\
 		-DUSE_BADINTERNALCALL
 	THIRD_PARTY_PYTHON_STAGE1_A_SRCS += \
 		third_party/python/Modules/_tracemalloc.c