diff --git a/stdlib/2/posix.pyi b/stdlib/2/posix.pyi
index f8feb0360..ba01df0b7 100644
--- a/stdlib/2/posix.pyi
+++ b/stdlib/2/posix.pyi
@@ -1,4 +1,4 @@
-from typing import List, Mapping, Tuple, Union, Sequence, IO, Optional, TypeVar
+from typing import Dict, List, Mapping, Tuple, Union, Sequence, IO, Optional, TypeVar
 
 error = OSError