diff --git a/recipes-misc/recipes-multimedia/rncbc/qtractor/0004-Add-includes-to-fix-build-with-Qt-5.11.patch b/recipes-misc/recipes-multimedia/rncbc/qtractor/0004-Add-includes-to-fix-build-with-Qt-5.11.patch
new file mode 100644
index 00000000..6f8f44ce
--- /dev/null
+++ b/recipes-misc/recipes-multimedia/rncbc/qtractor/0004-Add-includes-to-fix-build-with-Qt-5.11.patch
@@ -0,0 +1,92 @@
+From 99e6edad2d7d06bdd796b2c613fa6d9a243e92f1 Mon Sep 17 00:00:00 2001
+From: =?UTF-8?q?Andreas=20M=C3=BCller?= <schnitzeltony@gmail.com>
+Date: Sun, 3 Jun 2018 21:46:26 +0200
+Subject: [PATCH] Add includes to fix build with Qt 5.11
+MIME-Version: 1.0
+Content-Type: text/plain; charset=UTF-8
+Content-Transfer-Encoding: 8bit
+
+While at it use preferred <> instread of "".
+
+Fixes:
+
+| In file included from ../../recipe-sysroot/usr/include/qt5/QtWidgets/qradiobutton.h:44:0,
+|                  from ../../recipe-sysroot/usr/include/qt5/QtWidgets/QRadioButton:1,
+|                  from .ui/ui_qtractorMidiImportForm.h:44,
+|                  from qtractorMidiImportForm.h:25,
+|                  from qtractorMidiImportForm.cpp:22:
+| ../../recipe-sysroot/usr/include/qt5/QtWidgets/qabstractbutton.h:53:7: note: forward declaration of 'class QButtonGroup'
+|  class QButtonGroup;
+|        ^~~~~~~~~~~~
+| qtractorMidiImportForm.cpp:195:88: error: invalid use of incomplete type 'class QButtonGroup'
+| ...
+
+and
+
+| In file included from ../../recipe-sysroot/usr/include/qt5/QtGui/qwindowdefs.h:44:0,
+|                  from ../../recipe-sysroot/usr/include/qt5/QtWidgets/qwidget.h:44,
+|                  from ../../recipe-sysroot/usr/include/qt5/QtWidgets/qframe.h:44,
+|                  from ../../recipe-sysroot/usr/include/qt5/QtWidgets/QFrame:1,
+|                  from qtractorMeter.h:25,
+|                  from qtractorMeter.cpp:23:
+| ../../recipe-sysroot/usr/include/qt5/QtCore/qobjectdefs.h: In instantiation of 'struct QtPrivate::HasQ_OBJECT_Macro<QAction>':
+| ../../recipe-sysroot/usr/include/qt5/QtCore/qobject.h:502:5:   required from 'T qobject_cast(QObject*) [with T = QAction*]'
+| qtractorMeter.cpp:431:42:   required from here
+| ../../recipe-sysroot/usr/include/qt5/QtCore/qobjectdefs.h:622:37: error: incomplete type 'QAction' used in nested name specifier
+|          enum { Value =  sizeof(test(&Object::qt_metacall)) == sizeof(int) };
+|                                      ^~~~~~~
+| ...
+
+A similar patch was submitted in [1] - our special midiimportx branch needs a
+further pull request.
+
+[1] https://github.com/rncbc/qtractor/pull/156 
+
+Signed-off-by: Andreas Müller <schnitzeltony@gmail.com>
+---
+ src/qtractorMeter.cpp          | 1 +
+ src/qtractorMidiImportForm.cpp | 3 ++-
+ src/qtractorTrackButton.h      | 1 +
+ 3 files changed, 4 insertions(+), 1 deletion(-)
+
+diff --git a/src/qtractorMeter.cpp b/src/qtractorMeter.cpp
+index d1b826c5..999e0ae3 100644
+--- a/src/qtractorMeter.cpp
++++ b/src/qtractorMeter.cpp
+@@ -33,6 +33,7 @@
+ #include <QVBoxLayout>
+ #include <QPainter>
+ #include <QLabel>
++#include <QAction>
+ 
+ #include <QPaintEvent>
+ #include <QResizeEvent>
+diff --git a/src/qtractorMidiImportForm.cpp b/src/qtractorMidiImportForm.cpp
+index e04efb51..b22557f8 100644
+--- a/src/qtractorMidiImportForm.cpp
++++ b/src/qtractorMidiImportForm.cpp
+@@ -28,7 +28,8 @@
+ #include "qtractorFiles.h"
+ #include "qtractorCommand.h"
+ #include "qtractorInstrument.h"
+-#include "QPushButton"
++#include <QPushButton>
++#include <QButtonGroup>
+ 
+ 
+ //----------------------------------------------------------------------
+diff --git a/src/qtractorTrackButton.h b/src/qtractorTrackButton.h
+index dedd2933..8ec801f0 100644
+--- a/src/qtractorTrackButton.h
++++ b/src/qtractorTrackButton.h
+@@ -25,6 +25,7 @@
+ #include "qtractorTrack.h"
+ 
+ #include <QPushButton>
++#include <QAction>
+ 
+ #include "qtractorObserverWidget.h"
+ 
+-- 
+2.14.3
+
diff --git a/recipes-misc/recipes-multimedia/rncbc/qtractor_0.9.1.bb b/recipes-misc/recipes-multimedia/rncbc/qtractor_0.9.1.bb
index 639ffd5f..434c7853 100644
--- a/recipes-misc/recipes-multimedia/rncbc/qtractor_0.9.1.bb
+++ b/recipes-misc/recipes-multimedia/rncbc/qtractor_0.9.1.bb
@@ -24,6 +24,7 @@ SRC_URI = " \
     file://0001-do-nor-try-run-for-float-sse-detection.patch \
     file://0002-do-nor-try-run-for-suil-libs-detection.patch \
     file://0003-Add-ARM-NEON-acceleration-for-time-stretch-not-yet-t.patch \
+    file://0004-Add-includes-to-fix-build-with-Qt-5.11.patch \
     file://Qtractor.conf \
 "
 SRCREV = "e190588b89862d4de5953544035e91f58417225e"