diff --git a/stdlib/@tests/stubtest_allowlists/linux-py313.txt b/stdlib/@tests/stubtest_allowlists/linux-py313.txt
index 6a954388b..e81567635 100644
--- a/stdlib/@tests/stubtest_allowlists/linux-py313.txt
+++ b/stdlib/@tests/stubtest_allowlists/linux-py313.txt
@@ -1,7 +1,3 @@
 # TODO: triage these (new in py313)
-_stat.SF_SUPPORTED
-_stat.SF_SYNTHETIC
 mmap.MAP_NORESERVE
 posixpath.splitroot
-stat.SF_SUPPORTED
-stat.SF_SYNTHETIC
diff --git a/stdlib/@tests/stubtest_allowlists/win32-py313.txt b/stdlib/@tests/stubtest_allowlists/win32-py313.txt
index 41369de16..b59e0dea9 100644
--- a/stdlib/@tests/stubtest_allowlists/win32-py313.txt
+++ b/stdlib/@tests/stubtest_allowlists/win32-py313.txt
@@ -1,7 +1,5 @@
 # New in py313 (triage these!)
 _msi
-_stat.SF_SUPPORTED
-_stat.SF_SYNTHETIC
 _winapi.BatchedWaitForMultipleObjects
 _winapi.CreateEventW
 _winapi.CreateMutexW
@@ -35,8 +33,6 @@ os.fchmod
 os.lchmod
 os.path.exists
 os.path.lexists
-stat.SF_SUPPORTED
-stat.SF_SYNTHETIC
 subprocess.__all__
 subprocess.STARTF_FORCEOFFFEEDBACK
 subprocess.STARTF_FORCEONFEEDBACK
diff --git a/stdlib/_stat.pyi b/stdlib/_stat.pyi
index d5f9f7c2a..903571a64 100644
--- a/stdlib/_stat.pyi
+++ b/stdlib/_stat.pyi
@@ -110,8 +110,9 @@ if sys.version_info >= (3, 13):
     SF_FIRMLINK: Final = 0x00800000
     SF_DATALESS: Final = 0x40000000
 
-    SF_SUPPORTED: Final = 0x9F0000
-    SF_SYNTHETIC: Final = 0xC0000000
+    if sys.platform == "darwin":
+        SF_SUPPORTED: Final = 0x9F0000
+        SF_SYNTHETIC: Final = 0xC0000000
 
     UF_TRACKED: Final = 0x00000040
     UF_DATAVAULT: Final = 0x00000080