diff --git a/Include/cpython/initconfig.h b/Include/cpython/initconfig.h
index c103c2026e40e9..cbae97f12f5377 100644
--- a/Include/cpython/initconfig.h
+++ b/Include/cpython/initconfig.h
@@ -242,45 +242,6 @@ PyAPI_FUNC(PyStatus) PyConfig_SetWideStringList(PyConfig *config,
     Py_ssize_t length, wchar_t **items);
 
 
-/* --- PyInterpreterConfig ------------------------------------ */
-
-#define PyInterpreterConfig_DEFAULT_GIL (0)
-#define PyInterpreterConfig_SHARED_GIL (1)
-#define PyInterpreterConfig_OWN_GIL (2)
-
-typedef struct {
-    // XXX "allow_object_sharing"?  "own_objects"?
-    int use_main_obmalloc;
-    int allow_fork;
-    int allow_exec;
-    int allow_threads;
-    int allow_daemon_threads;
-    int check_multi_interp_extensions;
-    int gil;
-} PyInterpreterConfig;
-
-#define _PyInterpreterConfig_INIT \
-    { \
-        .use_main_obmalloc = 0, \
-        .allow_fork = 0, \
-        .allow_exec = 0, \
-        .allow_threads = 1, \
-        .allow_daemon_threads = 0, \
-        .check_multi_interp_extensions = 1, \
-        .gil = PyInterpreterConfig_OWN_GIL, \
-    }
-
-#define _PyInterpreterConfig_LEGACY_INIT \
-    { \
-        .use_main_obmalloc = 1, \
-        .allow_fork = 1, \
-        .allow_exec = 1, \
-        .allow_threads = 1, \
-        .allow_daemon_threads = 1, \
-        .check_multi_interp_extensions = 0, \
-        .gil = PyInterpreterConfig_SHARED_GIL, \
-    }
-
 /* --- Helper functions --------------------------------------- */
 
 /* Get the original command line arguments, before Python modified them.
diff --git a/Include/cpython/pylifecycle.h b/Include/cpython/pylifecycle.h
index 314a5cc5b942ac..4daea33bf80114 100644
--- a/Include/cpython/pylifecycle.h
+++ b/Include/cpython/pylifecycle.h
@@ -63,6 +63,45 @@ PyAPI_FUNC(int) _Py_CoerceLegacyLocale(int warn);
 PyAPI_FUNC(int) _Py_LegacyLocaleDetected(int warn);
 PyAPI_FUNC(char *) _Py_SetLocaleFromEnv(int category);
 
+/* --- PyInterpreterConfig ------------------------------------ */
+
+#define PyInterpreterConfig_DEFAULT_GIL (0)
+#define PyInterpreterConfig_SHARED_GIL (1)
+#define PyInterpreterConfig_OWN_GIL (2)
+
+typedef struct {
+    // XXX "allow_object_sharing"?  "own_objects"?
+    int use_main_obmalloc;
+    int allow_fork;
+    int allow_exec;
+    int allow_threads;
+    int allow_daemon_threads;
+    int check_multi_interp_extensions;
+    int gil;
+} PyInterpreterConfig;
+
+#define _PyInterpreterConfig_INIT \
+    { \
+        .use_main_obmalloc = 0, \
+        .allow_fork = 0, \
+        .allow_exec = 0, \
+        .allow_threads = 1, \
+        .allow_daemon_threads = 0, \
+        .check_multi_interp_extensions = 1, \
+        .gil = PyInterpreterConfig_OWN_GIL, \
+    }
+
+#define _PyInterpreterConfig_LEGACY_INIT \
+    { \
+        .use_main_obmalloc = 1, \
+        .allow_fork = 1, \
+        .allow_exec = 1, \
+        .allow_threads = 1, \
+        .allow_daemon_threads = 1, \
+        .check_multi_interp_extensions = 0, \
+        .gil = PyInterpreterConfig_SHARED_GIL, \
+    }
+
 PyAPI_FUNC(PyStatus) Py_NewInterpreterFromConfig(
     PyThreadState **tstate_p,
     const PyInterpreterConfig *config);