diff --git a/stdlib/lzma.pyi b/stdlib/lzma.pyi
index b39b5ecc7..7290a25b3 100644
--- a/stdlib/lzma.pyi
+++ b/stdlib/lzma.pyi
@@ -60,7 +60,7 @@ class LZMACompressor(object):
     def __init__(
         self, format: Optional[int] = ..., check: int = ..., preset: Optional[int] = ..., filters: Optional[_FilterChain] = ...
     ) -> None: ...
-    def compress(self, data: bytes) -> bytes: ...
+    def compress(self, __data: bytes) -> bytes: ...
     def flush(self) -> bytes: ...
 
 class LZMAError(Exception): ...
@@ -161,4 +161,4 @@ def compress(
     data: bytes, format: int = ..., check: int = ..., preset: Optional[int] = ..., filters: Optional[_FilterChain] = ...
 ) -> bytes: ...
 def decompress(data: bytes, format: int = ..., memlimit: Optional[int] = ..., filters: Optional[_FilterChain] = ...) -> bytes: ...
-def is_check_supported(check: int) -> bool: ...
+def is_check_supported(__check_id: int) -> bool: ...