diff --git a/PIL/Image.py b/PIL/Image.py
index 2fd40c6c7..e392c7ed6 100644
--- a/PIL/Image.py
+++ b/PIL/Image.py
@@ -706,7 +706,7 @@ class Image(object):
     def __setstate__(self, state):
         # type: (List) -> None
         Image.__init__(self)
-        self.tile = []
+        self.tile = []  # type: List[Tuple] ## FIXME More detail? Should tile be in __init__ & _new?
         info, mode, size, palette, data = state
         self.info = info
         self.mode = mode