diff --git a/evo.context.go b/evo.context.go
index 18125e7e..ce4b02b6 100644
--- a/evo.context.go
+++ b/evo.context.go
@@ -27,7 +27,7 @@ type Request struct {
 	CacheDuration time.Duration
 	Debug         bool
 	flashes       []flash
-	BeforeWrite   func(request *Request)
+	BeforeWrite   func(request *Request, body []byte) []byte
 }
 type flash struct {
 	Type    string `json:"type"`
diff --git a/fiber.context.go b/fiber.context.go
index 03397ce3..4c3b21c4 100644
--- a/fiber.context.go
+++ b/fiber.context.go
@@ -477,7 +477,7 @@ func (r *Request) Write(body interface{}) {
 		}, r.CacheDuration)
 	}
 	if r.BeforeWrite != nil {
-		r.BeforeWrite(r)
+		data = r.BeforeWrite(r, data)
 	}
 	r.Context.Context().Response.SetBody(data)
 }