diff --git a/Include/internal/pycore_pystate.h b/Include/internal/pycore_pystate.h
index 703a85b96b4..7c9d11aec36 100644
--- a/Include/internal/pycore_pystate.h
+++ b/Include/internal/pycore_pystate.h
@@ -184,6 +184,8 @@ PyAPI_FUNC(void) _PyRuntimeState_ReInitThreads(void);
    Return NULL on success, or return an error message on failure. */
 PyAPI_FUNC(_PyInitError) _PyRuntime_Initialize(void);
 
+PyAPI_FUNC(void) _PyRuntime_Finalize(void);
+
 #define _Py_CURRENTLY_FINALIZING(tstate) \
     (_PyRuntime.finalizing == tstate)
 
diff --git a/Modules/main.c b/Modules/main.c
index 8f7a1bfa830..99396b73c65 100644
--- a/Modules/main.c
+++ b/Modules/main.c
@@ -839,6 +839,7 @@ pymain_free(void)
     _PyPathConfig_ClearGlobal();
     _Py_ClearStandardStreamEncoding();
     _Py_ClearArgcArgv();
+    _PyRuntime_Finalize();
 }