Index: qtbase-opensource-src-5.6.2/src/gui/kernel/qplatformintegrationfactory.cpp
===================================================================
--- qtbase-opensource-src-5.6.2.orig/src/gui/kernel/qplatformintegrationfactory.cpp
+++ qtbase-opensource-src-5.6.2/src/gui/kernel/qplatformintegrationfactory.cpp
@@ -67,9 +67,10 @@ QPlatformIntegration *QPlatformIntegrati
     // Try loading the plugin from platformPluginPath first:
     if (!platformPluginPath.isEmpty()) {
         QCoreApplication::addLibraryPath(platformPluginPath);
-        if (QPlatformIntegration *ret = loadIntegration(directLoader(), platform, paramList, argc, argv))
-            return ret;
     }
+    QCoreApplication::addLibraryPath(QStringLiteral(NIXPKGS_QPA_PLATFORM_PLUGIN_PATH));
+    if (QPlatformIntegration *ret = loadIntegration(directLoader(), platform, paramList, argc, argv))
+        return ret;
     if (QPlatformIntegration *ret = loadIntegration(loader(), platform, paramList, argc, argv))
         return ret;
 #else
@@ -95,15 +96,16 @@ QStringList QPlatformIntegrationFactory:
     QStringList list;
     if (!platformPluginPath.isEmpty()) {
         QCoreApplication::addLibraryPath(platformPluginPath);
-        list = directLoader()->keyMap().values();
-        if (!list.isEmpty()) {
-            const QString postFix = QStringLiteral(" (from ")
-                                    + QDir::toNativeSeparators(platformPluginPath)
-                                    + QLatin1Char(')');
-            const QStringList::iterator end = list.end();
-            for (QStringList::iterator it = list.begin(); it != end; ++it)
-                (*it).append(postFix);
-        }
+    }
+    QCoreApplication::addLibraryPath(QStringLiteral(NIXPKGS_QPA_PLATFORM_PLUGIN_PATH));
+    list = directLoader()->keyMap().values();
+    if (!list.isEmpty()) {
+        const QString postFix = QStringLiteral(" (from ")
+            + QDir::toNativeSeparators(platformPluginPath)
+            + QLatin1Char(')');
+        const QStringList::iterator end = list.end();
+        for (QStringList::iterator it = list.begin(); it != end; ++it)
+            (*it).append(postFix);
     }
     list.append(loader()->keyMap().values());
     return list;