diff --git a/volatility3/framework/interfaces/objects.py b/volatility3/framework/interfaces/objects.py
index ab568b927..b74267197 100644
--- a/volatility3/framework/interfaces/objects.py
+++ b/volatility3/framework/interfaces/objects.py
@@ -133,7 +133,7 @@ class ObjectInterface(metaclass=abc.ABCMeta):
 
     def __getattr__(self, attr: str) -> Any:
         """Method for ensuring volatility members can be returned."""
-        raise AttributeError
+        raise AttributeError()
 
     @property
     def vol(self) -> ReadOnlyMapping: