diff --git a/context/context.go b/context/context.go
index a0ef5d4..d804168 100644
--- a/context/context.go
+++ b/context/context.go
@@ -10,7 +10,7 @@ func (c ContextKey) String() string {
 
 func NewContext(parent Context) Context {
 	c := &defaultContext{
-		parent: parent,
+		Context: parent,
 	}
 	c.attributes = make(map[string]interface{})
 
@@ -25,7 +25,7 @@ type Context interface {
 }
 
 type defaultContext struct {
-	parent     Context
+	Context
 	attributes map[string]interface{}
 
 	mtx sync.RWMutex
@@ -50,10 +50,10 @@ func (dc *defaultContext) GetAttribute(key string) (value interface{}) {
 		return dc.attributes[key]
 	}
 
-	if nil == dc.parent {
+	if nil == dc.Context {
 		return nil
 	}
-	return dc.parent.GetAttribute(key)
+	return dc.Context.GetAttribute(key)
 }
 
 func (dc *defaultContext) RemoveAttribute(key string) {
@@ -67,11 +67,11 @@ func (dc *defaultContext) RemoveAttribute(key string) {
 		return
 	}
 
-	if nil == dc.parent {
+	if nil == dc.Context {
 		return
 	}
 
-	dc.parent.RemoveAttribute(key)
+	dc.Context.RemoveAttribute(key)
 }
 
 func (dc *defaultContext) ContainsAttribute(key string) (exist bool) {
@@ -84,10 +84,10 @@ func (dc *defaultContext) ContainsAttribute(key string) (exist bool) {
 		return true
 	}
 
-	if nil == dc.parent {
+	if nil == dc.Context {
 		return false
 	}
-	return dc.parent.ContainsAttribute(key)
+	return dc.Context.ContainsAttribute(key)
 }
 
 func (dc *defaultContext) checkInitialized() {