diff --git a/src/plugins/coreplugin/infobar.cpp b/src/plugins/coreplugin/infobar.cpp
index 1b4fdc9c58b..2598d89718e 100644
--- a/src/plugins/coreplugin/infobar.cpp
+++ b/src/plugins/coreplugin/infobar.cpp
@@ -229,22 +229,25 @@ void InfoBarDisplay::update()
             hbox->addWidget(infoWidgetButton);
         }
 
+        const Id id = info.id;
         QToolButton *infoWidgetSuppressButton = 0;
         if (info.globalSuppression == InfoBarEntry::GlobalSuppressionEnabled) {
             infoWidgetSuppressButton = new QToolButton;
-            infoWidgetSuppressButton->setProperty("infoId", info.id.uniqueIdentifier());
             infoWidgetSuppressButton->setText(tr("Do Not Show Again"));
-            connect(infoWidgetSuppressButton, SIGNAL(clicked()), SLOT(suppressButtonClicked()));
+            connect(infoWidgetSuppressButton, &QAbstractButton::clicked, this, [this, id] {
+                m_infoBar->removeInfo(id);
+                InfoBar::globallySuppressInfo(id);
+            });
         }
 
         QToolButton *infoWidgetCloseButton = new QToolButton;
-        infoWidgetCloseButton->setProperty("infoId", info.id.uniqueIdentifier());
-
         // need to connect to cancelObjectbefore connecting to cancelButtonClicked,
         // because the latter removes the button and with it any connect
         if (info.m_cancelButtonCallBack)
             connect(infoWidgetCloseButton, &QAbstractButton::clicked, info.m_cancelButtonCallBack);
-        connect(infoWidgetCloseButton, SIGNAL(clicked()), SLOT(cancelButtonClicked()));
+        connect(infoWidgetCloseButton, &QAbstractButton::clicked, this, [this, id] {
+            m_infoBar->suppressInfo(id);
+        });
 
         if (info.cancelButtonText.isEmpty()) {
             infoWidgetCloseButton->setAutoRaise(true);
@@ -271,16 +274,4 @@ void InfoBarDisplay::widgetDestroyed()
     m_infoWidgets.removeOne(static_cast<QWidget *>(sender()));
 }
 
-void InfoBarDisplay::cancelButtonClicked()
-{
-    m_infoBar->suppressInfo(Id::fromUniqueIdentifier(sender()->property("infoId").toInt()));
-}
-
-void InfoBarDisplay::suppressButtonClicked()
-{
-    Id id = Id::fromUniqueIdentifier(sender()->property("infoId").toInt());
-    m_infoBar->removeInfo(id);
-    InfoBar::globallySuppressInfo(id);
-}
-
 } // namespace Core
diff --git a/src/plugins/coreplugin/infobar.h b/src/plugins/coreplugin/infobar.h
index 29201682eea..1a921147c33 100644
--- a/src/plugins/coreplugin/infobar.h
+++ b/src/plugins/coreplugin/infobar.h
@@ -114,8 +114,6 @@ public:
     void setInfoBar(InfoBar *infoBar);
 
 private slots:
-    void cancelButtonClicked();
-    void suppressButtonClicked();
     void update();
     void infoBarDestroyed();
     void widgetDestroyed();