diff --git a/go/pkg/basecamp/doc.go b/go/pkg/basecamp/doc.go
index 35219ea2..5181a6eb 100644
--- a/go/pkg/basecamp/doc.go
+++ b/go/pkg/basecamp/doc.go
@@ -90,18 +90,18 @@
 //
 // List todos in a todolist:
 //
-//	todos, err := account.Todos().List(ctx, projectID, todolistID, nil)
+//	todos, err := account.Todos().List(ctx, todolistID, nil)
 //
 // Create a todo:
 //
-//	todo, err := account.Todos().Create(ctx, projectID, todolistID, &basecamp.CreateTodoRequest{
+//	todo, err := account.Todos().Create(ctx, todolistID, &basecamp.CreateTodoRequest{
 //	    Content: "Ship the feature",
 //	    DueOn:   "2024-12-31",
 //	})
 //
 // Complete a todo:
 //
-//	err := account.Todos().Complete(ctx, projectID, todoID)
+//	err := account.Todos().Complete(ctx, todoID)
 //
 // # Searching
 //
@@ -176,6 +176,6 @@
 //	acme := client.ForAccount("12345")
 //	initech := client.ForAccount("67890")
 //
-//	go func() { acme.Todos().List(ctx, projectID, todolistID, nil) }()
+//	go func() { acme.Todos().List(ctx, todolistID, nil) }()
 //	go func() { initech.Projects().List(ctx, nil) }()
 package basecamp
diff --git a/go/pkg/basecamp/example_test.go b/go/pkg/basecamp/example_test.go
index e681e086..631f5fb1 100644
--- a/go/pkg/basecamp/example_test.go
+++ b/go/pkg/basecamp/example_test.go
@@ -149,6 +149,28 @@ func ExampleTodosService_List() {
 	}
 }
 
+func ExampleTodosService_List_completed() {
+	cfg := basecamp.DefaultConfig()
+	token := &basecamp.StaticTokenProvider{Token: os.Getenv("BASECAMP_TOKEN")}
+	client := basecamp.NewClient(cfg, token)
+
+	ctx := context.Background()
+
+	todolistID := int64(789012)
+
+	// List only completed todos in a todolist.
+	todosResult, err := client.ForAccount("12345").Todos().List(ctx, todolistID, &basecamp.TodoListOptions{
+		Completed: true,
+	})
+	if err != nil {
+		log.Fatal(err)
+	}
+
+	for _, t := range todosResult.Todos {
+		fmt.Printf("[x] %s\n", t.Content)
+	}
+}
+
 func ExampleTodosService_Create() {
 	cfg := basecamp.DefaultConfig()
 	token := &basecamp.StaticTokenProvider{Token: os.Getenv("BASECAMP_TOKEN")}