diff --git a/stdlib/types.pyi b/stdlib/types.pyi
index fb31fbda6..6909c765c 100644
--- a/stdlib/types.pyi
+++ b/stdlib/types.pyi
@@ -376,6 +376,10 @@ class AsyncGeneratorType(AsyncGenerator[_T_co, _T_contra]):
     def ag_await(self) -> Awaitable[Any] | None: ...
     __name__: str
     __qualname__: str
+    if sys.version_info >= (3, 12):
+        @property
+        def ag_suspended(self) -> bool: ...
+
     def __aiter__(self) -> AsyncGeneratorType[_T_co, _T_contra]: ...
     def __anext__(self) -> Coroutine[Any, Any, _T_co]: ...
     def asend(self, __val: _T_contra) -> Coroutine[Any, Any, _T_co]: ...
diff --git a/tests/stubtest_allowlists/py312.txt b/tests/stubtest_allowlists/py312.txt
index 373b7c9c2..f9bf94fe4 100644
--- a/tests/stubtest_allowlists/py312.txt
+++ b/tests/stubtest_allowlists/py312.txt
@@ -163,7 +163,6 @@ turtle.TNavigator.teleport
 turtle.TPen.teleport
 turtle.__all__
 turtle.teleport
-types.AsyncGeneratorType.ag_suspended
 typing.ParamSpec.__mro_entries__
 typing.ParamSpecArgs.__mro_entries__
 typing.ParamSpecKwargs.__mro_entries__