diff --git a/libs/core/state/src/actions/failure.type.ts b/libs/core/state/src/actions/failure.type.ts
index 1392b98080..a203e03c16 100644
--- a/libs/core/state/src/actions/failure.type.ts
+++ b/libs/core/state/src/actions/failure.type.ts
@@ -2,12 +2,14 @@ import { Action } from '@ngrx/store';
 
 import { DaffStateError } from '../errors/state-error.interface';
 
-/**
- * An action that represents a failure of an operation.
- */
-export interface DaffFailureAction extends Action {
+export interface DaffFailable {
   /**
    * A list of errors that occured during the operation.
    */
   readonly payload: DaffStateError[];
 }
+
+/**
+ * An action that represents a failure of an operation.
+ */
+export interface DaffFailureAction extends DaffFailable, Action {}
diff --git a/libs/core/state/src/actions/public_api.ts b/libs/core/state/src/actions/public_api.ts
index b1ab264d81..479e4bca34 100644
--- a/libs/core/state/src/actions/public_api.ts
+++ b/libs/core/state/src/actions/public_api.ts
@@ -1 +1 @@
-export *from './failure.type';
+export * from './failure.type';