diff --git a/2019/d07/ex1/ex1.py b/2019/d07/ex1/ex1.py
index 1808ec8..5bea100 100755
--- a/2019/d07/ex1/ex1.py
+++ b/2019/d07/ex1/ex1.py
@@ -1,5 +1,9 @@
 #!/usr/bin/env python
 
+# Mypy has issues with assigning Callable to fields of objects
+# See https://github.com/python/mypy/issues/708
+# type: ignore
+
 import itertools
 import sys
 from copy import deepcopy