diff --git a/stdlib/sysconfig.pyi b/stdlib/sysconfig.pyi
index 807a979050e8..c6419222df97 100644
--- a/stdlib/sysconfig.pyi
+++ b/stdlib/sysconfig.pyi
@@ -1,6 +1,6 @@
 import sys
 from typing import IO, Any, Literal, overload
-from typing_extensions import deprecated
+from typing_extensions import LiteralString, deprecated
 
 __all__ = [
     "get_config_h_filename",
@@ -28,8 +28,10 @@ def get_config_vars(arg: str, /, *args: str) -> list[Any]: ...
 def get_scheme_names() -> tuple[str, ...]: ...
 
 if sys.version_info >= (3, 10):
-    def get_default_scheme() -> str: ...
-    def get_preferred_scheme(key: Literal["prefix", "home", "user"]) -> str: ...
+    def get_default_scheme() -> LiteralString: ...
+    def get_preferred_scheme(key: Literal["prefix", "home", "user"]) -> LiteralString: ...
+    # Documented -- see https://docs.python.org/3/library/sysconfig.html#sysconfig._get_preferred_schemes
+    def _get_preferred_schemes() -> dict[Literal["prefix", "home", "user"], LiteralString]: ...
 
 def get_path_names() -> tuple[str, ...]: ...
 def get_path(name: str, scheme: str = ..., vars: dict[str, Any] | None = None, expand: bool = True) -> str: ...