diff --git a/src/filelock/__init__.py b/src/filelock/__init__.py
index 2b36c34..99654ea 100644
--- a/src/filelock/__init__.py
+++ b/src/filelock/__init__.py
@@ -32,9 +32,11 @@
         if warnings is not None:
             warnings.warn("only soft file lock is available", stacklevel=2)
 
-
-#: Alias for the lock, which should be used for the current platform.
-FileLock: type[BaseFileLock] = SoftFileLock if TYPE_CHECKING else _FileLock  # type: ignore[assignment]
+if TYPE_CHECKING:  # noqa: SIM108
+    FileLock = SoftFileLock
+else:
+    #: Alias for the lock, which should be used for the current platform.
+    FileLock = _FileLock
 
 
 __all__ = [