diff --git a/Include/internal/pycore_pystate.h b/Include/internal/pycore_pystate.h
index 945d992..703a85b 100644
--- a/Include/internal/pycore_pystate.h
+++ b/Include/internal/pycore_pystate.h
@@ -63,6 +63,8 @@
     int dlopenflags;
 #endif
 
+    PyObject *dict;  /* Stores per-interpreter state */
+
     PyObject *builtins_copy;
     PyObject *import_func;
     /* Initialized to PyEval_EvalFrameDefault(). */
diff --git a/Include/pystate.h b/Include/pystate.h
index a79a2e6..4c25e3f 100644
--- a/Include/pystate.h
+++ b/Include/pystate.h
@@ -24,17 +24,23 @@
 /* struct _is is defined in internal/pycore_pystate.h */
 typedef struct _is PyInterpreterState;
 
-/* State unique per thread */
-
 PyAPI_FUNC(PyInterpreterState *) PyInterpreterState_New(void);
 PyAPI_FUNC(void) PyInterpreterState_Clear(PyInterpreterState *);
 PyAPI_FUNC(void) PyInterpreterState_Delete(PyInterpreterState *);
 
+#if !defined(Py_LIMITED_API) || Py_LIMITED_API+0 >= 0x03080000
+/* New in 3.8 */
+PyAPI_FUNC(PyObject *) PyInterpreterState_GetDict(PyInterpreterState *);
+#endif
+
 #if !defined(Py_LIMITED_API) || Py_LIMITED_API+0 >= 0x03070000
 /* New in 3.7 */
 PyAPI_FUNC(int64_t) PyInterpreterState_GetID(PyInterpreterState *);
 #endif
 #if !defined(Py_LIMITED_API) || Py_LIMITED_API+0 >= 0x03030000
+
+/* State unique per thread */
+
 /* New in 3.3 */
 PyAPI_FUNC(int) PyState_AddModule(PyObject*, struct PyModuleDef*);
 PyAPI_FUNC(int) PyState_RemoveModule(struct PyModuleDef*);