diff --git a/Examples/CaseStudies/SwiftUICaseStudies/04-HigherOrderReducers-Recursion.swift b/Examples/CaseStudies/SwiftUICaseStudies/04-HigherOrderReducers-Recursion.swift
index 1a26194ded06..8b24e4ded7ad 100644
--- a/Examples/CaseStudies/SwiftUICaseStudies/04-HigherOrderReducers-Recursion.swift
+++ b/Examples/CaseStudies/SwiftUICaseStudies/04-HigherOrderReducers-Recursion.swift
@@ -18,6 +18,7 @@ struct Nested: Reducer {
     var rows: IdentifiedArrayOf<State> = []
   }
   
+  @CasePathable
   enum Action: Equatable {
     case addRowButtonTapped
     case nameTextFieldChanged(String)