diff --git a/fix-build-with-qt-5.13.patch b/fix-build-with-qt-5.13.patch
new file mode 100644
index 0000000..ac3b018
--- /dev/null
+++ b/fix-build-with-qt-5.13.patch
@@ -0,0 +1,21 @@
+commit 3cb4f2834eac0f422712a837c425a43114af586c
+Author: Kevin Funk <kevin.funk@kdab.com>
+Date:   Tue Mar 12 10:14:43 2019 +0100
+
+    Adapt to removal of QQmlType::createSize in 5.13
+
+diff --git a/plugins/qmlsupport/qmlsupport.cpp b/plugins/qmlsupport/qmlsupport.cpp
+index 019a847f..0c1d4c45 100644
+--- a/plugins/qmlsupport/qmlsupport.cpp
++++ b/plugins/qmlsupport/qmlsupport.cpp
+@@ -356,7 +356,9 @@ QmlSupport::QmlSupport(Probe *probe, QObject *parent)
+     MO_ADD_PROPERTY_RO(QQmlType, elementName);
+     MO_ADD_PROPERTY_RO(QQmlType, majorVersion);
+     MO_ADD_PROPERTY_RO(QQmlType, minorVersion);
+-    MO_ADD_PROPERTY_RO(QQmlType, createSize);
++#if QT_VERSION < QT_VERSION_CHECK(5, 13, 0)
++    MO_ADD_PROPERTY_RO(QQmlType, createSize); // got removed in v5.13.0-alpha1
++#endif
+     MO_ADD_PROPERTY_RO(QQmlType, isCreatable);
+     MO_ADD_PROPERTY_RO(QQmlType, isExtendedType);
+     MO_ADD_PROPERTY_RO(QQmlType, isSingleton);
diff --git a/gammaray.changes b/gammaray.changes
index 211cc7d..d58a5a9 100644
--- a/gammaray.changes
+++ b/gammaray.changes
@@ -1,3 +1,13 @@
+-------------------------------------------------------------------
+Wed Apr 10 18:04:06 UTC 2019 - Christophe Giboudeaux <christophe@krop.fr>
+
+- Add fix-build-with-qt-5.13.patch
+
+-------------------------------------------------------------------
+Tue Apr  2 13:26:04 UTC 2019 - Christophe Giboudeaux <christophe@krop.fr>
+
+- Remove the vtk-tcl dependency.
+
 -------------------------------------------------------------------
 Thu Feb 28 21:01:00 UTC 2019 - wbauer@tmo.at
 
diff --git a/gammaray.spec b/gammaray.spec
index b8dee13..6fd691c 100644
--- a/gammaray.spec
+++ b/gammaray.spec
@@ -27,6 +27,8 @@ URL:            http://www.kdab.com/gammaray
 Source:         https://github.com/KDAB/GammaRay/releases/download/v%{version}/%{name}-%{version}.tar.gz
 # PATCH-FIX-UPSTREAM Fix_icons_installation.patch -- Don't try to install multiple copies in exotic subdirs
 Patch0:         Fix_icons_installation.patch
+# PATCH-FIX-UPSTREAM fix-build-with-qt-5.13.patch
+Patch1:         fix-build-with-qt-5.13.patch
 BuildRequires:  binutils-devel
 BuildRequires:  cmake >= 3.1
 BuildRequires:  doxygen
@@ -48,7 +50,6 @@ BuildRequires:  update-desktop-files
 BuildRequires:  vtk-devel
 BuildRequires:  vtk-java
 BuildRequires:  vtk-qt
-BuildRequires:  vtk-tcl
 BuildRequires:  wayland-devel
 BuildRequires:  cmake(KF5CoreAddons)
 BuildRequires:  cmake(Qt5Bluetooth) >= 5.3.0
@@ -109,23 +110,18 @@ frameworks in Qt. Development files.
 %autopatch -p1
 
 %build
-%if "%{_lib}" == "lib64"
-LIBSUFFIX="-DLIB_SUFFIX=64"
-%else
-LIBSUFFIX=""
-%endif
-cmake . -DCMAKE_INSTALL_PREFIX=%{_prefix} \
-        -DCMAKE_SKIP_INSTALL_RPATH=ON \
-        -DCMAKE_VERBOSE_MAKEFILE=ON \
-        -DECM_MKSPECS_INSTALL_DIR=%{_libdir}/qt5/mkspecs/modules \
-        -DQCH_INSTALL_DIR=%{_datadir}/gammaray/ \
-        -DQDOC_EXECUTABLE=%{_libqt5_bindir}/qdoc \
-        -DQHELPGEN_EXECUTABLE=%{_libqt5_bindir}/qhelpgenerator \
-        $LIBSUFFIX
-make VERBOSE=1 %{?_smp_mflags}
+%cmake \
+  -DECM_MKSPECS_INSTALL_DIR=%{_libdir}/qt5/mkspecs/modules \
+  -DQCH_INSTALL_DIR=%{_datadir}/gammaray/ \
+  -DQDOC_EXECUTABLE=%{_libqt5_bindir}/qdoc \
+  -DQHELPGEN_EXECUTABLE=%{_libqt5_bindir}/qhelpgenerator
+
+# Still not available on all leap flavors
+# %%cmake_build
+%make_jobs
 
 %install
-%make_install
+%cmake_install
 
 install -d -m 755 %{buildroot}%{_docdir}/%{name}
 mv %{buildroot}%{_datadir}/doc/%{name} %{buildroot}%{_docdir}