diff --git a/src/PIL/TiffImagePlugin.py b/src/PIL/TiffImagePlugin.py
index db3eaa50e..400717e60 100644
--- a/src/PIL/TiffImagePlugin.py
+++ b/src/PIL/TiffImagePlugin.py
@@ -812,8 +812,8 @@ class ImageFileDirectory_v2(collections.MutableMapping):
         return offset
 
 
-ImageFileDirectory_v2._load_dispatch = _load_dispatch
-ImageFileDirectory_v2._write_dispatch = _write_dispatch
+ImageFileDirectory_v2._load_dispatch = _load_dispatch # type: ignore
+ImageFileDirectory_v2._write_dispatch = _write_dispatch # type: ignore
 for idx, name in TYPES.items():
     name = name.replace(" ", "_")
     setattr(ImageFileDirectory_v2, "load_" + name, _load_dispatch[idx][1])