diff --git a/shell/ui/engine.cc b/shell/ui/engine.cc
index 9333a41562f06f4095d91f98c42bfc94126de604..5cc3632ac65b71ded5b43154c9648920a822d20d 100644
--- a/shell/ui/engine.cc
+++ b/shell/ui/engine.cc
@@ -159,5 +159,9 @@ void Engine::RequestNavigate(mojo::Target target,
 void Engine::DidNavigateLocally(const mojo::String& url) {
 }
 
+void Engine::RequestNavigateHistory(int32_t delta) {
+  NOTIMPLEMENTED();
+}
+
 }  // namespace shell
 }  // namespace sky
diff --git a/shell/ui/engine.h b/shell/ui/engine.h
index 004050e06f5572fbffa23a289eb85a0288e01458..1e7827cf130352cf42b840f1d834d49bb6392ce4 100644
--- a/shell/ui/engine.h
+++ b/shell/ui/engine.h
@@ -73,6 +73,7 @@ class Engine : public UIDelegate,
   void RequestNavigate(mojo::Target target,
                        mojo::URLRequestPtr request) override;
   void DidNavigateLocally(const mojo::String& url) override;
+  void RequestNavigateHistory(int32_t delta) override;
 
   void UpdateWebViewSize();