diff --git a/src/gui/image/qicon.cpp b/src/gui/image/qicon.cpp
index fa4b4e01af..9b2e96d4b0 100644
--- a/src/gui/image/qicon.cpp
+++ b/src/gui/image/qicon.cpp
@@ -1469,8 +1469,13 @@ QString qt_findAtNxFile(const QString &baseFileName, qreal targetDevicePixelRati
         return baseFileName;
 
     int dotIndex = baseFileName.lastIndexOf(QLatin1Char('.'));
-    if (dotIndex == -1) /* no dot */
+    if (dotIndex == -1) { /* no dot */
         dotIndex = baseFileName.size(); /* append */
+    } else if (dotIndex >= 2 && baseFileName[dotIndex - 1] == QLatin1Char('9')
+        && baseFileName[dotIndex - 2] == QLatin1Char('.')) {
+        // If the file has a .9.* (9-patch image) extension, we must ensure that the @nx goes before it.
+        dotIndex -= 2;
+    }
 
     QString atNxfileName = baseFileName;
     atNxfileName.insert(dotIndex, QLatin1String("@2x"));
diff --git a/tests/auto/gui/image/qiconhighdpi/icons/misc/button.9.png b/tests/auto/gui/image/qiconhighdpi/icons/misc/button.9.png
new file mode 100644
index 0000000000..1a560a1d74
Binary files /dev/null and b/tests/auto/gui/image/qiconhighdpi/icons/misc/button.9.png differ
diff --git a/tests/auto/gui/image/qiconhighdpi/icons/misc/button@2x.9.png b/tests/auto/gui/image/qiconhighdpi/icons/misc/button@2x.9.png
new file mode 100644
index 0000000000..f010dc55c7
Binary files /dev/null and b/tests/auto/gui/image/qiconhighdpi/icons/misc/button@2x.9.png differ
diff --git a/tests/auto/gui/image/qiconhighdpi/tst_qiconhighdpi.cpp b/tests/auto/gui/image/qiconhighdpi/tst_qiconhighdpi.cpp
index ce7f68a0a6..51892cca04 100644
--- a/tests/auto/gui/image/qiconhighdpi/tst_qiconhighdpi.cpp
+++ b/tests/auto/gui/image/qiconhighdpi/tst_qiconhighdpi.cpp
@@ -39,6 +39,7 @@ private slots:
     void initTestCase();
     void fromTheme_data();
     void fromTheme();
+    void ninePatch();
 };
 
 tst_QIconHighDpi::tst_QIconHighDpi()
@@ -182,6 +183,24 @@ void tst_QIconHighDpi::fromTheme()
     QCOMPARE(pixmap.devicePixelRatio(), expectedDpr);
 }
 
+void tst_QIconHighDpi::ninePatch()
+{
+    const QIcon icon(":/icons/misc/button.9.png");
+    const int dpr = qCeil(qApp->devicePixelRatio());
+
+    switch (dpr) {
+    case 1:
+        QCOMPARE(icon.availableSizes().size(), 1);
+        QCOMPARE(icon.availableSizes().at(0), QSize(42, 42));
+        break;
+    case 2:
+        QCOMPARE(icon.availableSizes().size(), 2);
+        QCOMPARE(icon.availableSizes().at(0), QSize(42, 42));
+        QCOMPARE(icon.availableSizes().at(1), QSize(82, 82));
+        break;
+    }
+}
+
 int main(int argc, char *argv[])
 {
     QGuiApplication::setAttribute(Qt::AA_UseHighDpiPixmaps);
diff --git a/tests/auto/gui/image/qiconhighdpi/tst_qiconhighdpi.qrc b/tests/auto/gui/image/qiconhighdpi/tst_qiconhighdpi.qrc
index 80b5e38ee6..5cc1c6d9b1 100644
--- a/tests/auto/gui/image/qiconhighdpi/tst_qiconhighdpi.qrc
+++ b/tests/auto/gui/image/qiconhighdpi/tst_qiconhighdpi.qrc
@@ -4,5 +4,7 @@
         <file>icons/testtheme/22x22/actions/appointment-new.png</file>
         <file>icons/testtheme/index.theme</file>
         <file>icons/testtheme/22x22@2/actions/appointment-new.png</file>
+        <file>icons/misc/button.9.png</file>
+        <file>icons/misc/button@2x.9.png</file>
     </qresource>
 </RCC>