diff --git a/samples/Cpp/TestCpp/Classes/LabelTest/LabelTest.cpp b/samples/Cpp/TestCpp/Classes/LabelTest/LabelTest.cpp
index 57d5618a78..09280e9b63 100644
--- a/samples/Cpp/TestCpp/Classes/LabelTest/LabelTest.cpp
+++ b/samples/Cpp/TestCpp/Classes/LabelTest/LabelTest.cpp
@@ -1612,6 +1612,14 @@ std::string LabelBMFontBounds::subtitle() const
 }
 
 void LabelBMFontBounds::draw()
+{
+    CustomCommand *cmd = CustomCommand::getCommandPool().generateCommand();
+    cmd->init(0, _vertexZ);
+    cmd->func = CC_CALLBACK_0(LabelBMFontBounds::onDraw, this);
+    Director::getInstance()->getRenderer()->addCommand(cmd);
+}
+
+void LabelBMFontBounds::onDraw()
 {
     auto labelSize = label1->getContentSize();
     auto origin = Director::getInstance()->getWinSize();
diff --git a/samples/Cpp/TestCpp/Classes/LabelTest/LabelTest.h b/samples/Cpp/TestCpp/Classes/LabelTest/LabelTest.h
index c532bef477..11c9934f93 100644
--- a/samples/Cpp/TestCpp/Classes/LabelTest/LabelTest.h
+++ b/samples/Cpp/TestCpp/Classes/LabelTest/LabelTest.h
@@ -376,6 +376,8 @@ public:
     virtual void draw();
     virtual std::string title() const override;
     virtual std::string subtitle() const override;
+protected:
+    void onDraw();
 private:
     LabelBMFont *label1;
 };