diff --git a/librecad/PKGBUILD b/librecad/PKGBUILD
index 6d89010c8..d4581ca22 100644
--- a/librecad/PKGBUILD
+++ b/librecad/PKGBUILD
@@ -9,14 +9,19 @@ depends=('qt5-base' 'qt5-svg' 'libxcb' 'muparser')
 makedepends=('qt5-tools' 'boost' 'imagemagick' 'librsvg')
 conflicts=('librecad-git')
 replaces=('librecad-svn' 'caduntu' 'caduntu-svn')
-source=("${pkgname}-${pkgver}.tar.gz::https://github.com/LibreCAD/LibreCAD/archive/${pkgver}.tar.gz")
-sha256sums=('74c4ede409b13d0365c65c0cd52dba04f1049530f6df706dc905443d5e60db06')
+source=("${pkgname}-${pkgver}.tar.gz::https://github.com/LibreCAD/LibreCAD/archive/${pkgver}.tar.gz"
+        librecad-qt-5.11.patch)
+sha256sums=('74c4ede409b13d0365c65c0cd52dba04f1049530f6df706dc905443d5e60db06'
+            '85f246a1f44f1d6bf9c1b8625a9b6a1949faee0eaedee2c90661d153ef9a0f77')
 
 prepare() {
 	cd "${srcdir}/LibreCAD-${pkgver}"
 	
 	# fix version string
 	sed -i "/^SCMREVISION/c SCMREVISION=\"${pkgver}\"" librecad/src/src.pro
+
+	# Qt 5.11 build fix
+	patch -p1 ../librecad-qt-5.11.patch
 }
 
 build() {
diff --git a/librecad/librecad-qt-5.11.patch b/librecad/librecad-qt-5.11.patch
new file mode 100644
index 000000000..5baff5b76
--- /dev/null
+++ b/librecad/librecad-qt-5.11.patch
@@ -0,0 +1,34 @@
+diff -up LibreCAD-2.2.0-rc1/librecad/src/ui/forms/qg_commandwidget.cpp.qt511 LibreCAD-2.2.0-rc1/librecad/src/ui/forms/qg_commandwidget.cpp
+--- LibreCAD-2.2.0-rc1/librecad/src/ui/forms/qg_commandwidget.cpp.qt511	2018-07-23 13:44:03.713571700 -0400
++++ LibreCAD-2.2.0-rc1/librecad/src/ui/forms/qg_commandwidget.cpp	2018-07-23 13:44:16.145253360 -0400
+@@ -27,6 +27,7 @@
+ 
+ #include <algorithm>
+ 
++#include <QAction>
+ #include <QKeyEvent>
+ #include <QFileDialog>
+ #include <QSettings>
+diff -up LibreCAD-2.2.0-rc1/librecad/src/ui/generic/colorwizard.cpp.qt511 LibreCAD-2.2.0-rc1/librecad/src/ui/generic/colorwizard.cpp
+--- LibreCAD-2.2.0-rc1/librecad/src/ui/generic/colorwizard.cpp.qt511	2018-07-23 13:44:27.832954070 -0400
++++ LibreCAD-2.2.0-rc1/librecad/src/ui/generic/colorwizard.cpp	2018-07-23 13:44:41.272609918 -0400
+@@ -27,6 +27,7 @@
+ #include "colorwizard.h"
+ #include "ui_colorwizard.h"
+ 
++#include <QAction>
+ #include <QColorDialog>
+ #include <QLineEdit>
+ #include <QListWidget>
+diff -up LibreCAD-2.2.0-rc1/librecad/src/ui/generic/widgetcreator.cpp.qt511 LibreCAD-2.2.0-rc1/librecad/src/ui/generic/widgetcreator.cpp
+--- LibreCAD-2.2.0-rc1/librecad/src/ui/generic/widgetcreator.cpp.qt511	2018-07-23 13:44:52.488322714 -0400
++++ LibreCAD-2.2.0-rc1/librecad/src/ui/generic/widgetcreator.cpp	2018-07-23 13:45:07.415940459 -0400
+@@ -27,6 +27,8 @@
+ #include "widgetcreator.h"
+ #include "ui_widgetcreator.h"
+ 
++#include <QAction>
++#include <QActionGroup>
+ #include <QSettings>
+ #include <QLineEdit>
+ #include <QPushButton>