diff --git a/CMakeLists.txt b/CMakeLists.txt
index bd5424d3f2dce8251b779a1c60452d2af58c5769..3e68905f6a35cf118150ad4800245355383f65ac 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -18,7 +18,7 @@ include(KDEFrameworkCompilerSettings NO_POLICY_SCOPE)
 include(ECMQtDeclareLoggingCategory)
 include(ECMAddTests)
 
-set(MESSAGELIB_LIB_VERSION "5.1.80")
+set(MESSAGELIB_LIB_VERSION "5.1.81")
 
 set(KF5_VERSION "5.19.0")
 set(KDEPIMLIBS_LIB_VERSION "5.1.42")
diff --git a/messageviewer/src/viewer/viewer_p.cpp b/messageviewer/src/viewer/viewer_p.cpp
index ae0d0688fb6495bf2a889bcf24bef7de72baf959..159e4f28084dc6f380cd6d68c726ed7ae9549a57 100644
--- a/messageviewer/src/viewer/viewer_p.cpp
+++ b/messageviewer/src/viewer/viewer_p.cpp
@@ -2391,7 +2391,7 @@ void ViewerPrivate::slotActivatePlugin(ViewerPluginInterface *interface)
     if (!text.isEmpty()) {
         interface->setText(text);
     }
-    interface->showWidget();
+    interface->execute();
 }
 
 void ViewerPrivate::slotAttachmentSaveAs()
diff --git a/messageviewer/src/viewerplugins/tests/viewerplugin_gui.cpp b/messageviewer/src/viewerplugins/tests/viewerplugin_gui.cpp
index b4ae2bd071876f268b2403e4a0dacfca5b726a55..8180c0567913f5a9a3d27388025ddb42c6e1e140 100644
--- a/messageviewer/src/viewerplugins/tests/viewerplugin_gui.cpp
+++ b/messageviewer/src/viewerplugins/tests/viewerplugin_gui.cpp
@@ -88,7 +88,7 @@ ViewerPluginTest::~ViewerPluginTest()
 
 void ViewerPluginTest::slotActivatePlugin(MessageViewer::ViewerPluginInterface *interface)
 {
-    interface->showWidget();
+    interface->execute();
 }
 
 int main(int argc, char **argv)
diff --git a/messageviewer/src/viewerplugins/viewerplugininterface.cpp b/messageviewer/src/viewerplugins/viewerplugininterface.cpp
index 5321809cbbfe87dac67fdcd3b264c79f145ab483..fa2115551b9eedbfa154d625f681663f9aa19c63 100644
--- a/messageviewer/src/viewerplugins/viewerplugininterface.cpp
+++ b/messageviewer/src/viewerplugins/viewerplugininterface.cpp
@@ -40,6 +40,11 @@ ViewerPluginInterface::~ViewerPluginInterface()
     delete d;
 }
 
+void ViewerPluginInterface::execute()
+{
+    showWidget();
+}
+
 void ViewerPluginInterface::setText(const QString &text)
 {
     Q_UNUSED(text);
@@ -75,6 +80,11 @@ void ViewerPluginInterface::closePlugin()
     // Reimplement in subclass
 }
 
+void ViewerPluginInterface::showWidget()
+{
+    // Reimplement in subclass
+}
+
 void ViewerPluginInterface::updateAction(const Akonadi::Item &item)
 {
     Q_UNUSED(item);
diff --git a/messageviewer/src/viewerplugins/viewerplugininterface.h b/messageviewer/src/viewerplugins/viewerplugininterface.h
index eedb66e5a8484042f5e66c315716bd8803d1c983..a0d01d73438dbf7347c197e79daee7f1298fc3ca 100644
--- a/messageviewer/src/viewerplugins/viewerplugininterface.h
+++ b/messageviewer/src/viewerplugins/viewerplugininterface.h
@@ -43,17 +43,19 @@ public:
     Q_FLAGS(SpecificFeatureTypes)
     Q_DECLARE_FLAGS(SpecificFeatureTypes, SpecificFeatureType)
 
+    virtual void execute();
+
     virtual void setText(const QString &text);
     virtual QAction *action() const;
     virtual void setUrl(const QUrl &url);
     virtual void setMessage(const KMime::Message::Ptr &value);
     virtual void setMessageItem(const Akonadi::Item &item);
     virtual void closePlugin();
-    virtual void showWidget() = 0;
     virtual ViewerPluginInterface::SpecificFeatureTypes featureTypes() const = 0;
     virtual void updateAction(const Akonadi::Item &item);
 
 protected:
+    virtual void showWidget();
     void addHelpTextAction(QAction *act, const QString &text);
 
 protected Q_SLOTS: