diff --git a/rally/task/context.py b/rally/task/context.py
index 1d0a2116ff..891d159fe7 100644
--- a/rally/task/context.py
+++ b/rally/task/context.py
@@ -125,6 +125,7 @@ class BaseContext(plugin.Plugin, functional.FunctionalMixin,
     RESOURCE_NAME_FORMAT = "c_rally_XXXXXXXX_XXXXXXXX"
 
     CONFIG_SCHEMA: dict[str, t.Any] = {"type": "null"}
+    config: t.Any
 
     def __init__(self, ctx: dict[str, t.Any]) -> None:
         super(BaseContext, self).__init__()
diff --git a/rally/task/hook.py b/rally/task/hook.py
index 1cc54e1fa9..30944dbe86 100644
--- a/rally/task/hook.py
+++ b/rally/task/hook.py
@@ -141,7 +141,7 @@ class HookAction(plugin.Plugin, validation.ValidatablePluginMixin,
                  metaclass=abc.ABCMeta):
     """Factory for hook classes."""
 
-    CONFIG_SCHEMA = {"type": "null"}
+    CONFIG_SCHEMA: dict = {"type": "null"}
 
     def __init__(
         self,