diff --git a/src/gui/image/qicon.cpp b/src/gui/image/qicon.cpp
index 5205f2b2f6c..414ff22f3fe 100644
--- a/src/gui/image/qicon.cpp
+++ b/src/gui/image/qicon.cpp
@@ -462,6 +462,11 @@ void QPixmapIconEngine::addFile(const QString &fileName, const QSize &size, QIco
         pixmaps += QPixmapIconEngineEntry(abs, size, mode, state);
 }
 
+bool QPixmapIconEngine::isNull()
+{
+    return pixmaps.isEmpty();
+}
+
 QString QPixmapIconEngine::key() const
 {
     return "QPixmapIconEngine"_L1;
diff --git a/src/gui/image/qicon_p.h b/src/gui/image/qicon_p.h
index c8d228259ef..c5bf1206207 100644
--- a/src/gui/image/qicon_p.h
+++ b/src/gui/image/qicon_p.h
@@ -84,7 +84,7 @@ public:
     QList<QSize> availableSizes(QIcon::Mode mode, QIcon::State state) override;
     void addPixmap(const QPixmap &pixmap, QIcon::Mode mode, QIcon::State state) override;
     void addFile(const QString &fileName, const QSize &size, QIcon::Mode mode, QIcon::State state) override;
-
+    bool isNull() override;
 
     QString key() const override;
     QIconEngine *clone() const override;
diff --git a/tests/auto/gui/image/qicon/tst_qicon.cpp b/tests/auto/gui/image/qicon/tst_qicon.cpp
index 71df9f12ca6..d7fcd58a03e 100644
--- a/tests/auto/gui/image/qicon/tst_qicon.cpp
+++ b/tests/auto/gui/image/qicon/tst_qicon.cpp
@@ -195,17 +195,17 @@ void tst_QIcon::isNull() {
 
     // test string constructor with non-existing file
     QIcon iconNoFile = QIcon("imagedoesnotexist");
-    QVERIFY(!iconNoFile.isNull());
+    QVERIFY(iconNoFile.isNull());
     QVERIFY(!iconNoFile.actualSize(QSize(32, 32)).isValid());
 
     // test string constructor with non-existing file with suffix
     QIcon iconNoFileSuffix = QIcon("imagedoesnotexist.png");
-    QVERIFY(!iconNoFileSuffix.isNull());
+    QVERIFY(iconNoFileSuffix.isNull());
     QVERIFY(!iconNoFileSuffix.actualSize(QSize(32, 32)).isValid());
 
     // test string constructor with existing file but unsupported format
     QIcon iconUnsupportedFormat = QIcon(m_sourceFileName);
-    QVERIFY(!iconUnsupportedFormat.isNull());
+    QVERIFY(iconUnsupportedFormat.isNull());
     QVERIFY(!iconUnsupportedFormat.actualSize(QSize(32, 32)).isValid());
 
     // test string constructor with existing file and supported format
diff --git a/tests/auto/widgets/util/qsystemtrayicon/CMakeLists.txt b/tests/auto/widgets/util/qsystemtrayicon/CMakeLists.txt
index b64dab76c12..401c572fbce 100644
--- a/tests/auto/widgets/util/qsystemtrayicon/CMakeLists.txt
+++ b/tests/auto/widgets/util/qsystemtrayicon/CMakeLists.txt
@@ -5,10 +5,16 @@
 ## tst_qsystemtrayicon Test:
 #####################################################################
 
+set(resources_resource_files
+    "icons/icon.png"
+)
+
 qt_internal_add_test(tst_qsystemtrayicon
     SOURCES
         tst_qsystemtrayicon.cpp
     LIBRARIES
         Qt::Gui
         Qt::Widgets
+    TESTDATA ${resources_resource_files}
+    BUILTIN_TESTDATA
 )
diff --git a/tests/auto/widgets/util/qsystemtrayicon/tst_qsystemtrayicon.cpp b/tests/auto/widgets/util/qsystemtrayicon/tst_qsystemtrayicon.cpp
index 2b04fc51047..3bdf24b393f 100644
--- a/tests/auto/widgets/util/qsystemtrayicon/tst_qsystemtrayicon.cpp
+++ b/tests/auto/widgets/util/qsystemtrayicon/tst_qsystemtrayicon.cpp
@@ -39,9 +39,9 @@ tst_QSystemTrayIcon::~tst_QSystemTrayIcon()
 void tst_QSystemTrayIcon::showHide()
 {
     QSystemTrayIcon icon;
-    icon.setIcon(QIcon("icons/icon.png"));
+    icon.setIcon(QIcon(":/icons/icon.png"));
     icon.show();
-    icon.setIcon(QIcon("icons/icon.png"));
+    icon.setIcon(QIcon(":/icons/icon.png"));
     icon.hide();
 }
 
@@ -49,7 +49,7 @@ void tst_QSystemTrayIcon::showHide()
 void tst_QSystemTrayIcon::showMessage()
 {
     QSystemTrayIcon icon;
-    icon.setIcon(QIcon("icons/icon.png"));
+    icon.setIcon(QIcon(":/icons/icon.png"));
 
     icon.showMessage("Title", "Messagecontents");
     icon.showMessage("Title", "Messagecontents", QSystemTrayIcon::NoIcon);
@@ -72,7 +72,7 @@ void tst_QSystemTrayIcon::getSetCheck()
     QCOMPARE(true, "testToolTip" == icon.toolTip());
 
     QCOMPARE(true, icon.icon().isNull());
-    icon.setIcon(QIcon("icons/icon.png"));
+    icon.setIcon(QIcon(":/icons/icon.png"));
     QCOMPARE(false, icon.icon().isNull());
 
     QMenu menu;
@@ -104,7 +104,7 @@ void tst_QSystemTrayIcon::lastWindowClosed()
     QSignalSpy spy(qApp, &QGuiApplication::lastWindowClosed);
     QWidget window;
     QSystemTrayIcon icon;
-    icon.setIcon(QIcon("whatever.png"));
+    icon.setIcon(QIcon(":/icons/icon.png"));
     icon.show();
     window.show();
     QTimer::singleShot(2500, &window, SLOT(close()));