diff --git a/example_test.go b/example_test.go
index fffdbec2..e1a5a92b 100644
--- a/example_test.go
+++ b/example_test.go
@@ -354,20 +354,22 @@ func ExampleParseWithOptions_prefix() {
 	// Output: {Foo:a}
 }
 
-// Use a different tag name than `env`.
+// Use a different tag name than `env` and `envDefault`.
 func ExampleParseWithOptions_tagName() {
 	type Config struct {
 		Home string `json:"HOME"`
+		Page string `json:"PAGE" def:"world"`
 	}
 	os.Setenv("HOME", "hello")
 	var cfg Config
 	if err := ParseWithOptions(&cfg, Options{
-		TagName: "json",
+		TagName:             "json",
+		DefaultValueTagName: "def",
 	}); err != nil {
 		fmt.Println(err)
 	}
 	fmt.Printf("%+v", cfg)
-	// Output: {Home:hello}
+	// Output: {Home:hello Page:world}
 }
 
 // If you don't want to set the `env` tag on every field, you can use the