diff --git a/stdlib/sys/__init__.pyi b/stdlib/sys/__init__.pyi
index fb1e24f3e..5695ca256 100644
--- a/stdlib/sys/__init__.pyi
+++ b/stdlib/sys/__init__.pyi
@@ -393,6 +393,10 @@ if sys.platform == "win32":
     def getwindowsversion() -> _WinVersion: ...
 
 def intern(string: str, /) -> str: ...
+
+if sys.version_info >= (3, 13):
+    def _is_gil_enabled() -> bool: ...
+
 def is_finalizing() -> bool: ...
 def breakpointhook(*args: Any, **kwargs: Any) -> Any: ...