diff --git a/mainWindow/kpMainWindow_Text.cpp b/mainWindow/kpMainWindow_Text.cpp
--- a/mainWindow/kpMainWindow_Text.cpp
+++ b/mainWindow/kpMainWindow_Text.cpp
@@ -55,36 +55,38 @@
 
     d->actionTextFontFamily = ac->add<KFontAction> ("text_font_family");
     d->actionTextFontFamily->setText (i18n ("Font Family"));
-    connect (d->actionTextFontFamily, &QAction::triggered,
+    connect (d->actionTextFontFamily,
+             static_cast<void (KFontAction::*)(const QString&)>(&KFontAction::triggered),
              this, &kpMainWindow::slotTextFontFamilyChanged);
 
     d->actionTextFontSize = ac->add<KFontSizeAction> ("text_font_size");
     d->actionTextFontSize->setText (i18n ("Font Size"));
-    connect (d->actionTextFontSize, &QAction::triggered,
+    connect (d->actionTextFontSize,
+             static_cast<void (KFontSizeAction::*)(int)>(&KFontSizeAction::triggered),
              this, &kpMainWindow::slotTextFontSizeChanged);
 
     d->actionTextBold = ac->add<KToggleAction> ("text_bold");
     d->actionTextBold->setIcon(KDE::icon("format-text-bold"));
     d->actionTextBold->setText (i18n ("Bold"));
-    connect (d->actionTextBold, &QAction::triggered,
+    connect (d->actionTextBold, &KToggleAction::triggered,
              this, &kpMainWindow::slotTextBoldChanged);
 
     d->actionTextItalic = ac->add<KToggleAction> ("text_italic");
     d->actionTextItalic->setIcon (KDE::icon("format-text-italic"));
     d->actionTextItalic->setText (i18n ("Italic"));
-    connect (d->actionTextItalic, &QAction::triggered,
+    connect (d->actionTextItalic, &KToggleAction::triggered,
              this, &kpMainWindow::slotTextItalicChanged);
 
     d->actionTextUnderline = ac->add<KToggleAction> ("text_underline");
     d->actionTextUnderline->setIcon (KDE::icon("format-text-underline"));
     d->actionTextUnderline->setText (i18n ("Underline"));
-    connect (d->actionTextUnderline, &QAction::triggered,
+    connect (d->actionTextUnderline, &KToggleAction::triggered,
              this, &kpMainWindow::slotTextUnderlineChanged);
 
     d->actionTextStrikeThru = ac->add<KToggleAction> ("text_strike_thru");
     d->actionTextStrikeThru->setIcon(KDE::icon("format-text-strikethrough"));
     d->actionTextStrikeThru->setText (i18n ("Strike Through"));
-    connect (d->actionTextStrikeThru, &QAction::triggered,
+    connect (d->actionTextStrikeThru, &KToggleAction::triggered,
              this, &kpMainWindow::slotTextStrikeThruChanged);