diff --git a/core/Node/Node.cpp b/core/Node/Node.cpp
index f29c6107..8fd05b19 100644
--- a/core/Node/Node.cpp
+++ b/core/Node/Node.cpp
@@ -93,11 +93,11 @@ void e2d::Node::Visit()
 	UpdateTransform();
 	extrapolate_ = this->GetProperty();
 
-	auto renderTarget = Renderer::GetInstance()->GetRenderTarget();
+	auto render_target = Renderer::GetInstance()->GetRenderTarget();
 	if (clip_enabled_)
 	{
-		renderTarget->SetTransform(final_matrix_);
-		renderTarget->PushAxisAlignedClip(
+		render_target->SetTransform(final_matrix_);
+		render_target->PushAxisAlignedClip(
 			D2D1::RectF(0, 0, size_.width, size_.height),
 			D2D1_ANTIALIAS_MODE_PER_PRIMITIVE
 		);
@@ -108,7 +108,7 @@ void e2d::Node::Visit()
 		auto drawableNode = dynamic_cast<Drawable*>(this);
 		if (drawableNode)
 		{
-			renderTarget->SetTransform(final_matrix_);
+			render_target->SetTransform(final_matrix_);
 			drawableNode->Draw();
 		}
 	}
@@ -135,7 +135,7 @@ void e2d::Node::Visit()
 		auto drawableNode = dynamic_cast<Drawable*>(this);
 		if (drawableNode)
 		{
-			renderTarget->SetTransform(final_matrix_);
+			render_target->SetTransform(final_matrix_);
 			drawableNode->Draw();
 		}
 
@@ -146,7 +146,7 @@ void e2d::Node::Visit()
 
 	if (clip_enabled_)
 	{
-		renderTarget->PopAxisAlignedClip();
+		render_target->PopAxisAlignedClip();
 	}
 }
 
diff --git a/core/Transition/Transition.cpp b/core/Transition/Transition.cpp
index 625ba7c6..0635d981 100644
--- a/core/Transition/Transition.cpp
+++ b/core/Transition/Transition.cpp
@@ -84,7 +84,7 @@ void e2d::Transition::Update()
 
 void e2d::Transition::Draw()
 {
-	auto renderTarget = Renderer::GetInstance()->GetRenderTarget();
+	auto render_target = Renderer::GetInstance()->GetRenderTarget();
 	auto size = Window::GetInstance()->GetSize();
 
 	if (out_scene_)
@@ -96,14 +96,14 @@ void e2d::Transition::Draw()
 			std::min(rootPos.x + size.width, size.width),
 			std::min(rootPos.y + size.height, size.height)
 		);
-		renderTarget->SetTransform(D2D1::Matrix3x2F::Identity());
-		renderTarget->PushAxisAlignedClip(clipRect, D2D1_ANTIALIAS_MODE_PER_PRIMITIVE);
-		renderTarget->PushLayer(out_layer_param_, out_layer_);
+		render_target->SetTransform(D2D1::Matrix3x2F::Identity());
+		render_target->PushAxisAlignedClip(clipRect, D2D1_ANTIALIAS_MODE_PER_PRIMITIVE);
+		render_target->PushLayer(out_layer_param_, out_layer_);
 
 		out_scene_->Visit();
 
-		renderTarget->PopLayer();
-		renderTarget->PopAxisAlignedClip();
+		render_target->PopLayer();
+		render_target->PopAxisAlignedClip();
 	}
 
 	if (in_scene_)
@@ -115,14 +115,14 @@ void e2d::Transition::Draw()
 			std::min(rootPos.x + size.width, size.width),
 			std::min(rootPos.y + size.height, size.height)
 		);
-		renderTarget->SetTransform(D2D1::Matrix3x2F::Identity());
-		renderTarget->PushAxisAlignedClip(clipRect, D2D1_ANTIALIAS_MODE_PER_PRIMITIVE);
-		renderTarget->PushLayer(in_layer_param_, in_layer_);
+		render_target->SetTransform(D2D1::Matrix3x2F::Identity());
+		render_target->PushAxisAlignedClip(clipRect, D2D1_ANTIALIAS_MODE_PER_PRIMITIVE);
+		render_target->PushLayer(in_layer_param_, in_layer_);
 
 		in_scene_->Visit();
 
-		renderTarget->PopLayer();
-		renderTarget->PopAxisAlignedClip();
+		render_target->PopLayer();
+		render_target->PopAxisAlignedClip();
 	}
 }