diff --git a/src/gui/image/qpixmap.cpp b/src/gui/image/qpixmap.cpp
index 5f51358eb2..a620d34553 100644
--- a/src/gui/image/qpixmap.cpp
+++ b/src/gui/image/qpixmap.cpp
@@ -73,7 +73,7 @@ QT_BEGIN_NAMESPACE
 static bool qt_pixmap_thread_test()
 {
     if (!QCoreApplication::instance()) {
-        qFatal("QPixmap: Must construct a QApplication before a QPaintDevice");
+        qFatal("QPixmap: Must construct a QGuiApplication before a QPixmap");
         return false;
     }
 
diff --git a/src/printsupport/kernel/qprinter.cpp b/src/printsupport/kernel/qprinter.cpp
index f90fa71b0f..0905cbb59f 100644
--- a/src/printsupport/kernel/qprinter.cpp
+++ b/src/printsupport/kernel/qprinter.cpp
@@ -538,7 +538,7 @@ QPrinter::QPrinter(const QPrinterInfo& printer, PrinterMode mode)
 void QPrinterPrivate::init(QPrinter::PrinterMode mode)
 {
     if (!QCoreApplication::instance()) {
-        qFatal("QPrinter: Must construct a QApplication before a QPaintDevice");
+        qFatal("QPrinter: Must construct a QCoreApplication before a QPrinter");
         return;
     }
 
diff --git a/src/widgets/kernel/qwidget.cpp b/src/widgets/kernel/qwidget.cpp
index 039a834214..a41d14e7d0 100644
--- a/src/widgets/kernel/qwidget.cpp
+++ b/src/widgets/kernel/qwidget.cpp
@@ -289,7 +289,7 @@ QWidgetPrivate::QWidgetPrivate(int version)
 #endif
 {
     if (!qApp) {
-        qFatal("QWidget: Must construct a QApplication before a QPaintDevice");
+        qFatal("QWidget: Must construct a QApplication before a QWidget");
         return;
     }