diff --git a/Include/cpython/sysmodule.h b/Include/cpython/sysmodule.h
index df12ae440f024b..c6f6776a8b9896 100644
--- a/Include/cpython/sysmodule.h
+++ b/Include/cpython/sysmodule.h
@@ -21,3 +21,4 @@ PyAPI_FUNC(int) PyUnstable_WritePerfMapEntry(
     unsigned int code_size,
     const char *entry_name);
 PyAPI_FUNC(void) PyUnstable_PerfMapState_Fini(void);
+PyAPI_FUNC(int) PyUnstable_CopyPerfMapFile(const char* parent_filename);
diff --git a/Include/sysmodule.h b/Include/sysmodule.h
index a59c4745c1f4a8..7b14f72ee2e494 100644
--- a/Include/sysmodule.h
+++ b/Include/sysmodule.h
@@ -1,6 +1,3 @@
-
-/* System module interface */
-
 #ifndef Py_SYSMODULE_H
 #define Py_SYSMODULE_H
 #ifdef __cplusplus
@@ -27,17 +24,10 @@ PyAPI_FUNC(int) PySys_Audit(
     const char *argFormat,
     ...);
 
-PyAPI_FUNC(int) PyUnstable_PerfMapState_Init(void);
-
-PyAPI_FUNC(int) PyUnstable_WritePerfMapEntry(const void *code_addr, unsigned int code_size, const char *entry_name);
-
-PyAPI_FUNC(void) PyUnstable_PerfMapState_Fini(void);
-
-PyAPI_FUNC(int) PyUnstable_CopyPerfMapFile(const char* parent_filename);
-#endif
 PyAPI_FUNC(int) PySys_AuditTuple(
     const char *event,
     PyObject *args);
+#endif
 
 #ifndef Py_LIMITED_API
 #  define Py_CPYTHON_SYSMODULE_H