diff --git a/router_test.go b/router_test.go
index fe7d0735..bb0289e0 100644
--- a/router_test.go
+++ b/router_test.go
@@ -214,6 +214,21 @@ func Test_Ensure_Router_Interface_Implementation(t *testing.T) {
 	utils.AssertEqual(t, true, ok)
 }
 
+func Test_Router_Handler_SetETag(t *testing.T) {
+	app := New()
+	app.Settings.ETag = true
+
+	app.Get("/", func(c *Ctx) {
+		c.Send("Hello, World!")
+	})
+
+	c := &fasthttp.RequestCtx{}
+
+	app.handler(c)
+
+	utils.AssertEqual(t, `"13-1831710635"`, string(c.Response.Header.Peek(HeaderETag)))
+}
+
 //////////////////////////////////////////////
 ///////////////// BENCHMARKS /////////////////
 //////////////////////////////////////////////