diff --git a/src/widgets/dialogs/qcolordialog.cpp b/src/widgets/dialogs/qcolordialog.cpp
index a3b6fe935d..93da30aef1 100644
--- a/src/widgets/dialogs/qcolordialog.cpp
+++ b/src/widgets/dialogs/qcolordialog.cpp
@@ -1755,7 +1755,7 @@ void QColorDialogPrivate::initWidgets()
         q->connect(custom, SIGNAL(selected(int,int)), SLOT(_q_newCustom(int,int)));
         q->connect(custom, SIGNAL(currentChanged(int,int)), SLOT(_q_nextCustom(int,int)));
 
-        q->connect(custom, &QWellArray::colorChanged, [this] (int index, QRgb color) {
+        q->connect(custom, &QWellArray::colorChanged, q, [this] (int index, QRgb color) {
             QColorDialogOptions::setCustomColor(index, color);
             if (custom)
                 custom->update();
diff --git a/src/widgets/dialogs/qfiledialog.cpp b/src/widgets/dialogs/qfiledialog.cpp
index a4b797e5a9..a07cc33711 100644
--- a/src/widgets/dialogs/qfiledialog.cpp
+++ b/src/widgets/dialogs/qfiledialog.cpp
@@ -2325,7 +2325,7 @@ void QFileDialog::getOpenFileContent(const QString &nameFilter, const std::funct
         fileOpenCompleted(fileName, fileContent);
     };
 
-    connect(dialog, &QFileDialog::fileSelected, fileSelected);
+    connect(dialog, &QFileDialog::fileSelected, dialog, fileSelected);
     dialog->setAttribute(Qt::WA_DeleteOnClose);
     dialog->show();
 #endif
@@ -2365,7 +2365,7 @@ void QFileDialog::saveFileContent(const QByteArray &fileContent, const QString &
         }
     };
 
-    connect(dialog, &QFileDialog::fileSelected, fileSelected);
+    connect(dialog, &QFileDialog::fileSelected, dialog, fileSelected);
     dialog->setAttribute(Qt::WA_DeleteOnClose);
     dialog->show();
 #endif
diff --git a/src/widgets/widgets/qkeysequenceedit.cpp b/src/widgets/widgets/qkeysequenceedit.cpp
index d2474e5675..7ae7a048d5 100644
--- a/src/widgets/widgets/qkeysequenceedit.cpp
+++ b/src/widgets/widgets/qkeysequenceedit.cpp
@@ -20,7 +20,7 @@ void QKeySequenceEditPrivate::init()
     lineEdit = new QLineEdit(q);
     lineEdit->setObjectName(QStringLiteral("qt_keysequenceedit_lineedit"));
     lineEdit->setClearButtonEnabled(false);
-    q->connect(lineEdit, &QLineEdit::textChanged, [q](const QString& text) {
+    q->connect(lineEdit, &QLineEdit::textChanged, q, [q](const QString& text) {
         // Clear the shortcut if the user clicked on the clear icon
         if (text.isEmpty())
             q->clear();
diff --git a/src/widgets/widgets/qmenu.cpp b/src/widgets/widgets/qmenu.cpp
index 391aee9cda..b0c653046d 100644
--- a/src/widgets/widgets/qmenu.cpp
+++ b/src/widgets/widgets/qmenu.cpp
@@ -165,7 +165,7 @@ void QMenuPrivate::init()
     defaultMenuAction = menuAction = new QAction(q);
     menuAction->setMenu(q); // this calls setOverrideMenuAction
     setOverrideMenuAction(nullptr);
-    QObject::connect(menuAction, &QAction::changed, [this] {
+    QObject::connect(menuAction, &QAction::changed, q, [this] {
         if (!tornPopup.isNull())
             tornPopup->updateWindowTitle();
     });