diff --git a/qt5/CMakeLists.txt b/qt5/CMakeLists.txt
index c32a39b2..1d0359e5 100644
--- a/qt5/CMakeLists.txt
+++ b/qt5/CMakeLists.txt
@@ -2,7 +2,11 @@ if(ENABLE_QT5)
   set(QTC_QT5_LINK_LIBS)
   set(QTC_QT5_DEFS)
   set(QTC_QT5_INCLUDES)
-  set(QTC_QT5_MODULES Qt5Core Qt5Gui Qt5Widgets Qt5Svg Qt5Quick Qt5DBus)
+  if(QTC_QT5_ENABLE_QTQUICK2)
+    set(QTC_QT5_MODULES Qt5Core Qt5Gui Qt5Widgets Qt5Svg Qt5Quick Qt5DBus)
+  else()
+    set(QTC_QT5_MODULES Qt5Core Qt5Gui Qt5Widgets Qt5Svg Qt5DBus)
+  endif()
   foreach(QtModule ${QTC_QT5_MODULES})
     find_package(${QtModule} REQUIRED)
     set(QTC_QT5_LINK_LIBS ${QTC_QT5_LINK_LIBS} ${${QtModule}_LIBRARIES})
diff --git a/qt5/style/CMakeLists.txt b/qt5/style/CMakeLists.txt
index bd0c642f..b6cb222a 100644
--- a/qt5/style/CMakeLists.txt
+++ b/qt5/style/CMakeLists.txt
@@ -27,6 +27,10 @@ if(NOT ENABLE_QT5)
   return()
 endif()
 
+if(QTC_QT5_ENABLE_QTQUICK2)
+  add_definitions(-DQTC_QT5_ENABLE_QTQUICK2=1)
+endif()
+
 set(qtcurve_style_common_SRCS
   ../common/common.cpp
   ../common/config_file.cpp)
diff --git a/qt5/style/qtcurve_plugin.cpp b/qt5/style/qtcurve_plugin.cpp
index cf405736..1420a03e 100644
--- a/qt5/style/qtcurve_plugin.cpp
+++ b/qt5/style/qtcurve_plugin.cpp
@@ -34,37 +34,21 @@
 #  include <QX11Info>
 #endif
 
-#include <QQuickWindow>
-#include <QQuickItem>
+#ifdef QTC_QT5_ENABLE_QTQUICK2
+#  include <QQuickWindow>
+#  include <QQuickItem>
+#endif
 #include <QDebug>
 
 namespace QtCurve {
 
 static bool inited = false;
 
-__attribute__((hot)) static bool
-qtcEventCallback(void **cbdata)
+__attribute__((hot)) static void
+qtcPolishQuickControl(QObject *obj)
 {
-    QObject *receiver = (QObject*)cbdata[0];
-    QTC_RET_IF_FAIL(receiver, false);
-    QEvent *event = (QEvent*)cbdata[1];
-    if (qtcUnlikely(event->type() == QEvent::DynamicPropertyChange)) {
-        QDynamicPropertyChangeEvent *prop_event =
-            static_cast<QDynamicPropertyChangeEvent*>(event);
-        // eat the property change events from ourselves
-        if (prop_event->propertyName() == QTC_PROP_NAME) {
-            return true;
-        }
-    }
-    QWidget *widget = qtcToWidget(receiver);
-    if (qtcUnlikely(widget && !qtcGetWid(widget))) {
-        if (Style *style = qtcGetStyle(widget)) {
-            style->prePolish(widget);
-        }
-    } else if (widget && event->type() == QEvent::UpdateRequest) {
-        QtcQWidgetProps props(widget);
-        props->opacity = 100;
-    } else if (QQuickWindow *window = qobject_cast<QQuickWindow*>(receiver)) {
+#ifdef QTC_QT5_ENABLE_QTQUICK2
+    if (QQuickWindow *window = qobject_cast<QQuickWindow*>(obj)) {
         // QtQuickControl support
         // This is still VERY experimental.
         // Need a lot more testing and refactoring.
@@ -87,14 +71,43 @@ qtcEventCallback(void **cbdata)
                 }
             }
         }
-    } else if (QQuickItem *item = qobject_cast<QQuickItem*>(receiver)) {
-        QQuickWindow *window = item->window();
-        if (!window)
-            return false;
-        if (qtcGetStyle(qApp)) {
-            window->setColor(QColor(0, 0, 0, 0));
-            qtcX11BlurTrigger(window->winId(), true, 0, NULL);
+    } else if (QQuickItem *item = qobject_cast<QQuickItem*>(obj)) {
+        if (QQuickWindow *window = item->window()) {
+            if (qtcGetStyle(qApp)) {
+                window->setColor(QColor(0, 0, 0, 0));
+                qtcX11BlurTrigger(window->winId(), true, 0, NULL);
+            }
+        }
+    }
+#else
+    QTC_UNUSED(obj);
+#endif
+}
+
+__attribute__((hot)) static bool
+qtcEventCallback(void **cbdata)
+{
+    QObject *receiver = (QObject*)cbdata[0];
+    QTC_RET_IF_FAIL(receiver, false);
+    QEvent *event = (QEvent*)cbdata[1];
+    if (qtcUnlikely(event->type() == QEvent::DynamicPropertyChange)) {
+        QDynamicPropertyChangeEvent *prop_event =
+            static_cast<QDynamicPropertyChangeEvent*>(event);
+        // eat the property change events from ourselves
+        if (prop_event->propertyName() == QTC_PROP_NAME) {
+            return true;
+        }
+    }
+    QWidget *widget = qtcToWidget(receiver);
+    if (qtcUnlikely(widget && !qtcGetWid(widget))) {
+        if (Style *style = qtcGetStyle(widget)) {
+            style->prePolish(widget);
         }
+    } else if (widget && event->type() == QEvent::UpdateRequest) {
+        QtcQWidgetProps props(widget);
+        props->opacity = 100;
+    } else {
+        qtcPolishQuickControl(receiver);
     }
     return false;
 }
@@ -103,7 +116,7 @@ QStyle*
 StylePlugin::create(const QString &key)
 {
     init();
-    return "qtcurve" == key.toLower() ? new Style : 0;
+    return key.toLower() == "qtcurve" ? new Style : 0;
 }
 
 void
@@ -114,7 +127,9 @@ StylePlugin::init()
     inited = true;
     QInternal::registerCallback(QInternal::EventNotifyCallback,
                                 qtcEventCallback);
+#ifdef QTC_QT5_ENABLE_QTQUICK2
     QQuickWindow::setDefaultAlphaBuffer(true);
+#endif
 #ifdef Qt5X11Extras_FOUND
     if (qApp->platformName() == "xcb") {
         qtcX11InitXcb(QX11Info::connection(), QX11Info::appScreen());