diff --git a/src/lib/deskflow/AppUtil.cpp b/src/lib/deskflow/AppUtil.cpp
index 838fcf7357..d0cd57a25c 100644
--- a/src/lib/deskflow/AppUtil.cpp
+++ b/src/lib/deskflow/AppUtil.cpp
@@ -16,10 +16,6 @@ AppUtil::AppUtil() : m_app(nullptr)
   s_instance = this;
 }
 
-AppUtil::~AppUtil()
-{
-}
-
 void AppUtil::adoptApp(IApp *app)
 {
   app->setByeFunc(&exitAppStatic);
diff --git a/src/lib/deskflow/AppUtil.h b/src/lib/deskflow/AppUtil.h
index d49bc23a65..6e7021deca 100644
--- a/src/lib/deskflow/AppUtil.h
+++ b/src/lib/deskflow/AppUtil.h
@@ -14,7 +14,7 @@ class AppUtil : public IAppUtil
 {
 public:
   AppUtil();
-  ~AppUtil() override;
+  ~AppUtil() override = default;
 
   void adoptApp(IApp *app) override;
   IApp &app() const override;