diff --git a/src/scriptengines/qml/plasmoid/appletinterface.h b/src/scriptengines/qml/plasmoid/appletinterface.h
--- a/src/scriptengines/qml/plasmoid/appletinterface.h
+++ b/src/scriptengines/qml/plasmoid/appletinterface.h
@@ -33,7 +33,6 @@
 
 class QAction;
 class QmlAppletScript;
-class QSignalMapper;
 class QSizeF;
 
 namespace KDeclarative
@@ -454,7 +453,6 @@
 private:
 
     QStringList m_actions;
-    QSignalMapper *m_actionSignals;
 
     KDeclarative::ConfigPropertyMap *m_configuration;
     DeclarativeAppletScript *m_appletScriptEngine;
diff --git a/src/scriptengines/qml/plasmoid/appletinterface.cpp b/src/scriptengines/qml/plasmoid/appletinterface.cpp
--- a/src/scriptengines/qml/plasmoid/appletinterface.cpp
+++ b/src/scriptengines/qml/plasmoid/appletinterface.cpp
@@ -24,7 +24,6 @@
 #include <QDir>
 #include <QFile>
 #include <QIcon>
-#include <QSignalMapper>
 #include <QTimer>
 
 #include <kactioncollection.h>
@@ -49,7 +48,6 @@
 
 AppletInterface::AppletInterface(DeclarativeAppletScript *script, const QVariantList &args, QQuickItem *parent)
     : AppletQuickItem(script->applet(), parent),
-      m_actionSignals(0),
       m_configuration(0),
       m_appletScriptEngine(script),
       m_toolTipTextFormat(0),
@@ -450,14 +448,9 @@
         Q_ASSERT(!m_actions.contains(name));
         m_actions.append(name);
 
-        if (!m_actionSignals) {
-            m_actionSignals = new QSignalMapper(this);
-            connect(m_actionSignals, static_cast<void(QSignalMapper::*)(const QString &)>(&QSignalMapper::mapped),
-                    appletScript(), &DeclarativeAppletScript::executeAction);
-        }
-
-        connect(action, &QAction::triggered, m_actionSignals, static_cast<void(QSignalMapper::*)()>(&QSignalMapper::map));
-        m_actionSignals->setMapping(action, name);
+        connect(action, &QAction::triggered, this, [this, name] {
+            executeAction(name);
+        });
     }
 
     if (!icon.isEmpty()) {
@@ -475,15 +468,7 @@
 {
     Plasma::Applet *a = applet();
     QAction *action = a->actions()->action(name);
-
-    if (action) {
-        if (m_actionSignals) {
-            m_actionSignals->removeMappings(action);
-        }
-
-        delete action;
-    }
-
+    delete action;
     m_actions.removeAll(name);
 }
 
diff --git a/src/scriptengines/qml/plasmoid/wallpaperinterface.h b/src/scriptengines/qml/plasmoid/wallpaperinterface.h
--- a/src/scriptengines/qml/plasmoid/wallpaperinterface.h
+++ b/src/scriptengines/qml/plasmoid/wallpaperinterface.h
@@ -29,7 +29,6 @@
 class KActionCollection;
 
 class ContainmentInterface;
-class QSignalMapper;
 
 namespace KDeclarative
 {
@@ -104,7 +103,6 @@
     KDeclarative::ConfigPropertyMap *m_configuration;
     KConfigLoader *m_configLoader;
     KActionCollection *m_actions;
-    QSignalMapper *m_actionSignals;
 
     static QHash<QObject *, WallpaperInterface *> s_rootObjects;
 };
diff --git a/src/scriptengines/qml/plasmoid/wallpaperinterface.cpp b/src/scriptengines/qml/plasmoid/wallpaperinterface.cpp
--- a/src/scriptengines/qml/plasmoid/wallpaperinterface.cpp
+++ b/src/scriptengines/qml/plasmoid/wallpaperinterface.cpp
@@ -31,7 +31,6 @@
 #include <QQmlExpression>
 #include <QQmlContext>
 #include <QQmlProperty>
-#include <QSignalMapper>
 
 #include <Plasma/PluginLoader>
 #include <kpackage/packageloader.h>
@@ -43,8 +42,7 @@
       m_containmentInterface(parent),
       m_qmlObject(0),
       m_configuration(0),
-      m_configLoader(0),
-      m_actionSignals(0)
+      m_configLoader(0)
 {
     m_actions = new KActionCollection(this);
 
@@ -220,13 +218,9 @@
         action = new QAction(text, this);
         m_actions->addAction(name, action);
 
-        if (!m_actionSignals) {
-            m_actionSignals = new QSignalMapper(this);
-            connect(m_actionSignals, static_cast<void(QSignalMapper::*)(const QString &)>(&QSignalMapper::mapped),
-                    this, &WallpaperInterface::executeAction);
-        }
-        connect(action, &QAction::triggered, m_actionSignals, static_cast<void(QSignalMapper::*)()>(&QSignalMapper::map));
-        m_actionSignals->setMapping(action, name);
+        connect(action, &QAction::triggered, this, [this, name] {
+            executeAction(name);
+        });
     }
 
     if (!icon.isEmpty()) {
@@ -246,11 +240,7 @@
     QAction *action = m_actions->action(name);
 
     if (action) {
-        if (m_actionSignals) {
-            m_actionSignals->removeMappings(action);
-        }
         m_actions->removeAction(action);
-
         delete action;
     }
     setProperty("contextualActions", QVariant::fromValue(contextualActions()));