diff --git a/qt5-qtwayland.spec b/qt5-qtwayland.spec
index 85fbaba..a8a380a 100644
--- a/qt5-qtwayland.spec
+++ b/qt5-qtwayland.spec
@@ -3,7 +3,7 @@
 Summary: Qt5 - Wayland platform support and QtCompositor module
 Name:    qt5-%{qt_module}
 Version: 5.12.4
-Release: 4%{?dist}
+Release: 5%{?dist}
 
 License: LGPLv3
 Url:     http://www.qt.io
@@ -19,12 +19,17 @@ Patch4:  qtwayland-make-handleupdate-aware-of-exposure-changes.patch
 Patch5:  qtwayland-dont-crash-when-start-drag-without-dragfocus.patch
 Patch6:  qtwayland-fix-expose-event-compression.patch
 
+# Upstreamable patches
+# https://fedoraproject.org/wiki/Changes/Qt_Wayland_By_Default_On_Gnome
+# https://bugzilla.redhat.com/show_bug.cgi?id=1732129
+Patch50: qtwayland-use-gnome-platform-theme-on-gnome-based-desktops.patch
+
 # filter qml provides
 %global __provides_exclude_from ^%{_qt5_archdatadir}/qml/.*\\.so$
 
 BuildRequires:  qt5-qtbase-devel >= %{version}
 BuildRequires:  qt5-qtbase-static
-BuildRequires: qt5-qtbase-private-devel
+BuildRequires:  qt5-qtbase-private-devel
 %{?_qt5:Requires: %{_qt5}%{?_isa} = %{_qt5_version}}
 BuildRequires:  qt5-qtdeclarative-devel
 
@@ -121,6 +126,10 @@ popd
 
 
 %changelog
+* Tue Jul 23 2019 Jan Grulich <jgrulich@redhat.com> - 5.12.3-5
+- Use Gnome platform theme on Gnome Wayland sessions
+  Resolves: bz#1732129
+
 * Thu Jul 11 2019 Jan Grulich <jgrulich@redhat.com> - 5.12.4-4
 - Pull in upstream fixes
 - Disable patch which is not needed anymore because of qtbase change
diff --git a/qtwayland-use-gnome-platform-theme-on-gnome-based-desktops.patch b/qtwayland-use-gnome-platform-theme-on-gnome-based-desktops.patch
new file mode 100644
index 0000000..d4463bf
--- /dev/null
+++ b/qtwayland-use-gnome-platform-theme-on-gnome-based-desktops.patch
@@ -0,0 +1,39 @@
+diff --git a/src/client/qwaylandintegration.cpp b/src/client/qwaylandintegration.cpp
+index 97e0203c..5bee160a 100644
+--- a/src/client/qwaylandintegration.cpp
++++ b/src/client/qwaylandintegration.cpp
+@@ -99,20 +99,26 @@ public:
+ 
+         if (QGuiApplication::desktopSettingsAware()) {
+             const QByteArray desktopEnvironment = QGuiApplicationPrivate::platformIntegration()->services()->desktopEnvironment();
+-
++            QList<QByteArray> gtkBasedEnvironments;
++            gtkBasedEnvironments << "GNOME"
++                                 << "X-CINNAMON"
++                                 << "UNITY"
++                                 << "MATE"
++                                 << "XFCE"
++                                 << "LXDE";
+             if (desktopEnvironment == QByteArrayLiteral("KDE")) {
+ #if QT_CONFIG(settings)
+                 result.push_back(QStringLiteral("kde"));
+ #endif
+-            } else if (!desktopEnvironment.isEmpty() &&
+-                desktopEnvironment != QByteArrayLiteral("UNKNOWN") &&
+-                desktopEnvironment != QByteArrayLiteral("GNOME") &&
+-                desktopEnvironment != QByteArrayLiteral("UNITY") &&
+-                desktopEnvironment != QByteArrayLiteral("MATE") &&
+-                desktopEnvironment != QByteArrayLiteral("XFCE") &&
+-                desktopEnvironment != QByteArrayLiteral("LXDE"))
++            } else if (gtkBasedEnvironments.contains(desktopEnvironment)) {
++                // prefer the GTK3 theme implementation with native dialogs etc.
++                result.push_back(QStringLiteral("gtk3"));
++                // fallback to the generic Gnome theme if loading the GTK3 theme fails
++                result.push_back(QLatin1String(QGnomeTheme::name));
++            } else if (!desktopEnvironment.isEmpty() && desktopEnvironment != QByteArrayLiteral("UNKNOWN")) {
+                 // Ignore X11 desktop environments
+                 result.push_back(QString::fromLocal8Bit(desktopEnvironment.toLower()));
++            }
+         }
+ 
+         if (result.isEmpty())