diff --git a/autotests/fakeeffectplugin_version.cpp b/autotests/fakeeffectplugin_version.cpp
index 1d1f5bcc03..07066d0d0e 100644
--- a/autotests/fakeeffectplugin_version.cpp
+++ b/autotests/fakeeffectplugin_version.cpp
@@ -38,7 +38,7 @@ class FakeEffectPluginFactory : public KWin::EffectPluginFactory
     Q_PLUGIN_METADATA(IID KPluginFactory_iid FILE "fakeeffectplugin_version.json")
     Q_INTERFACES(KPluginFactory)
 public:
-    explicit FakeEffectPluginFactory(const char *a = 0, QObject *b = 0) : KWin::EffectPluginFactory(a, b) {}
+    FakeEffectPluginFactory() {}
     ~FakeEffectPluginFactory() {}
     KWin::Effect *createEffect() const override {
         return new KWin::FakeVersionEffect();
diff --git a/libkwineffects/kwineffects.cpp b/libkwineffects/kwineffects.cpp
index 6a91813dad..4343bc14fd 100644
--- a/libkwineffects/kwineffects.cpp
+++ b/libkwineffects/kwineffects.cpp
@@ -611,8 +611,7 @@ int Effect::requestedEffectChainPosition() const
 //****************************************
 // EffectFactory
 //****************************************
-EffectPluginFactory::EffectPluginFactory(const char *componentName, QObject *parent)
-    : KPluginFactory(componentName, parent)
+EffectPluginFactory::EffectPluginFactory()
 {
 }
 
diff --git a/libkwineffects/kwineffects.h b/libkwineffects/kwineffects.h
index 1f978cd8b8..84797722cc 100644
--- a/libkwineffects/kwineffects.h
+++ b/libkwineffects/kwineffects.h
@@ -587,7 +587,7 @@ class KWINEFFECTS_EXPORT EffectPluginFactory : public KPluginFactory
 {
     Q_OBJECT
 public:
-    explicit EffectPluginFactory(const char *componentName = nullptr, QObject *parent = nullptr);
+    EffectPluginFactory();
     virtual ~EffectPluginFactory();
     /**
      * Returns whether the Effect is supported.
@@ -644,7 +644,7 @@ public:
         Q_PLUGIN_METADATA(IID KPluginFactory_iid FILE jsonFile) \
         Q_INTERFACES(KPluginFactory) \
     public: \
-        explicit factoryName(const char *a = 0, QObject *b = 0) : KWin::EffectPluginFactory(a, b) {} \
+        explicit factoryName() {} \
         ~factoryName() {} \
         bool isSupported() const override { \
             supported \
diff --git a/scripting/genericscriptedconfig.cpp b/scripting/genericscriptedconfig.cpp
index 7a0a389c84..79e9298b40 100644
--- a/scripting/genericscriptedconfig.cpp
+++ b/scripting/genericscriptedconfig.cpp
@@ -33,19 +33,14 @@
 
 namespace KWin {
 
-GenericScriptedConfigFactory::GenericScriptedConfigFactory()
-    : KPluginFactory("kcm_kwin4_genericscripted")
-{
-}
-
 QObject *GenericScriptedConfigFactory::create(const char *iface, QWidget *parentWidget, QObject *parent, const QVariantList &args, const QString &keyword)
 {
     Q_UNUSED(iface)
     Q_UNUSED(parent)
     if (keyword.startsWith(QStringLiteral("kwin4_effect_"))) {
-        return new ScriptedEffectConfig(componentName(), keyword, parentWidget, args);
+        return new ScriptedEffectConfig(QStringLiteral("kcm_kwin4_genericscripted"), keyword, parentWidget, args);
     } else {
-        return new ScriptingConfig(componentName(), keyword, parentWidget, args);
+        return new ScriptingConfig(QStringLiteral("kcm_kwin4_genericscripted"), keyword, parentWidget, args);
     }
 }
 
diff --git a/scripting/genericscriptedconfig.h b/scripting/genericscriptedconfig.h
index 47e3ba0f0a..7d768913fe 100644
--- a/scripting/genericscriptedconfig.h
+++ b/scripting/genericscriptedconfig.h
@@ -32,8 +32,6 @@ class GenericScriptedConfigFactory : public KPluginFactory
     Q_OBJECT
     Q_PLUGIN_METADATA(IID "org.kde.KPluginFactory"  FILE "genericscriptedconfig.json" )
     Q_INTERFACES(KPluginFactory)
-public:
-    GenericScriptedConfigFactory();
 
 protected:
     QObject *create(const char *iface, QWidget *parentWidget, QObject *parent, const QVariantList &args, const QString &keyword) override;