diff --git a/src/plasma/corona.cpp b/src/plasma/corona.cpp
index eb69ac02f..9a937b002 100644
--- a/src/plasma/corona.cpp
+++ b/src/plasma/corona.cpp
@@ -444,8 +444,8 @@ Containment *CoronaPrivate::addContainment(const QString &name, const QVariantLi
             q, SLOT(containmentDestroyed(QObject*)));
     QObject::connect(containment, SIGNAL(configNeedsSaving()),
             q, SLOT(requestConfigSync()));
-    QObject::connect(containment, SIGNAL(screenChanged(int,int,Plasma::Containment*)),
-            q, SIGNAL(screenOwnerChanged(int,int,Plasma::Containment*)));
+    QObject::connect(containment, SIGNAL(screenChanged(int)),
+            q, SIGNAL(screenOwnerChanged(int)));
 
     containment->init();
     KConfigGroup cg = containment->config();
diff --git a/src/plasma/corona.h b/src/plasma/corona.h
index cb4668b67..c5016da0a 100644
--- a/src/plasma/corona.h
+++ b/src/plasma/corona.h
@@ -217,11 +217,9 @@ Q_SIGNALS:
      * This signal indicates that a containment has been newly
      * associated (or dissociated) with a physical screen.
      *
-     * @param wasScreen the screen it was associated with
      * @param isScreen the screen it is now associated with
-     * @param containment the containment switching screens
      */
-    void screenOwnerChanged(int wasScreen, int isScreen, Plasma::Containment *containment);
+    void screenOwnerChanged(int isScreen);
 
     /**
      * This signal indicates that the configuration file was flushed to disk.
diff --git a/src/shell/shellcorona.cpp b/src/shell/shellcorona.cpp
index fda2a3646..2870402e4 100644
--- a/src/shell/shellcorona.cpp
+++ b/src/shell/shellcorona.cpp
@@ -139,9 +139,6 @@ ShellCorona::ShellCorona(QObject *parent)
     activityAction->setShortcut(QKeySequence("alt+d, alt+a"));
     activityAction->setShortcutContext(Qt::ApplicationShortcut);
 
-    connect(this, SIGNAL(immutabilityChanged(Plasma::ImmutabilityType)),
-            this, SLOT(updateImmutability(Plasma::ImmutabilityType)));
-
     connect(d->activityConsumer, SIGNAL(currentActivityChanged(QString)), this, SLOT(currentActivityChanged(QString)));
     connect(d->activityConsumer, SIGNAL(activityAdded(QString)), this, SLOT(activityAdded(QString)));
     connect(d->activityConsumer, SIGNAL(activityRemoved(QString)), this, SLOT(activityRemoved(QString)));