diff --git a/Modules/Wrappers/QtWidget/src/otbWrapperQtWidgetModel.cxx b/Modules/Wrappers/QtWidget/src/otbWrapperQtWidgetModel.cxx
index 84d8014986..e9587623db 100644
--- a/Modules/Wrappers/QtWidget/src/otbWrapperQtWidgetModel.cxx
+++ b/Modules/Wrappers/QtWidget/src/otbWrapperQtWidgetModel.cxx
@@ -57,6 +57,8 @@ ::QtWidgetModel(Application* app) :
 
 QtWidgetModel::~QtWidgetModel()
 {
+  if (m_Timer)
+    delete m_Timer;
 }
 
 void