2 files changed, 3 insertions, 2 deletions
diff --git a/examples/widgets/widgets/lineedits/window.cpp b/examples/widgets/widgets/lineedits/window.cpp
index ffb1edc5ce..47324589b7 100644
--- a/examples/widgets/widgets/lineedits/window.cpp
+++ b/examples/widgets/widgets/lineedits/window.cpp
@@ -53,7 +53,8 @@
 #include "window.h"
 
 //! [0]
-Window::Window()
+Window::Window(QWidget *parent)
+    : QWidget(parent)
 {
     QGroupBox *echoGroup = new QGroupBox(tr("Echo"));
 
diff --git a/examples/widgets/widgets/lineedits/window.h b/examples/widgets/widgets/lineedits/window.h
index 2070b3b84c..3231588f4f 100644
--- a/examples/widgets/widgets/lineedits/window.h
+++ b/examples/widgets/widgets/lineedits/window.h
@@ -64,7 +64,7 @@ class Window : public QWidget
     Q_OBJECT
 
 public:
-    Window();
+    Window(QWidget *parent = nullptr);
 
 public slots:
     void echoChanged(int);