diff --git a/Modules/Wrappers/QtWidget/src/otbWrapperQtWidgetModel.cxx b/Modules/Wrappers/QtWidget/src/otbWrapperQtWidgetModel.cxx
index 84d80149862acc6f81e791ac1c8faa58f4f9ac49..e9587623dbc3eeeea23a7fb28c345fbcc95aa9df 100644
--- a/Modules/Wrappers/QtWidget/src/otbWrapperQtWidgetModel.cxx
+++ b/Modules/Wrappers/QtWidget/src/otbWrapperQtWidgetModel.cxx
@@ -57,6 +57,8 @@ QtWidgetModel
 
 QtWidgetModel::~QtWidgetModel()
 {
+  if (m_Timer)
+    delete m_Timer;
 }
 
 void