diff --git a/mypy/main.py b/mypy/main.py
index e1268c306c10..d2970e937d79 100644
--- a/mypy/main.py
+++ b/mypy/main.py
@@ -8,7 +8,7 @@
 import sys
 import time
 
-from typing import Any, Dict, List, Mapping, Optional, Set, Tuple, Type, cast
+from typing import Any, Dict, List, Mapping, Optional, Set, Tuple, cast
 
 from mypy import build
 from mypy import defaults
@@ -128,8 +128,9 @@ def process_options(args: List[str],
     """Parse command line arguments."""
 
     # Make the help output a little less jarring.
-    help_factory = cast(Type[argparse.HelpFormatter], (lambda prog:
-                        argparse.RawDescriptionHelpFormatter(prog=prog, max_help_position=28)))
+    help_factory = (lambda prog:
+                    argparse.RawDescriptionHelpFormatter(prog=prog,
+                                                         max_help_position=28))  # type: Any
     parser = argparse.ArgumentParser(prog='mypy', epilog=FOOTER,
                                      fromfile_prefix_chars='@',
                                      formatter_class=help_factory)