diff --git a/README.md b/README.md
index 3413b8f..c797f8a 100644
--- a/README.md
+++ b/README.md
@@ -91,7 +91,7 @@ func HandleHome(w http.ResponseWriter, r *http.Request) {
   dropdownConfig := gropdown.NewConfigBuilder().WithPlacement(gropdown.Top).Build()
 
   configMap := gropdown.NewConfigMap()
-  configMap.Add("menu-1", dropdownConfig)
+  configMap.Add("demo", dropdownConfig)
   ctx := context.WithValue(r.Context(), gropdown.ConfigContextKey, configMap)
   err := Page().Render(ctx, w)
   if err != nil {