diff --git a/optika/mixins.py b/optika/mixins.py
index 032da26..636fcbd 100644
--- a/optika/mixins.py
+++ b/optika/mixins.py
@@ -35,7 +35,7 @@ def shape(self) -> dict[str, int]:
 
 
 @dataclasses.dataclass(repr=False)
-class Printable:
+class Printable(abc.ABC):
     """An object that can be printed."""
 
     @classmethod