diff --git a/qt5-qtwebengine.spec b/qt5-qtwebengine.spec
index 9b705b9..20134a4 100644
--- a/qt5-qtwebengine.spec
+++ b/qt5-qtwebengine.spec
@@ -30,7 +30,7 @@
 Summary: Qt5 - QtWebEngine components
 Name:    qt5-qtwebengine
 Version: 5.6.0
-Release: 2%{?dist}
+Release: 3%{?dist}
 
 # See LICENSE.GPL LICENSE.LGPL LGPL_EXCEPTION.txt, for details
 # See also http://qt-project.org/doc/qt-5.0/qtdoc/licensing.html
@@ -303,11 +303,12 @@ BuildArch: noarch
 export STRIP=strip
 export NINJAFLAGS="-v %{_smp_mflags}"
 export NINJA_PATH=%{_bindir}/ninja-build
+export CXXFLAGS="%{optflags} -fno-delete-null-pointer-checks"
 
 mkdir %{_target_platform}
 pushd %{_target_platform}
 
-%{qmake_qt5} WEBENGINE_CONFIG+="use_system_icu" ..
+%{qmake_qt5} CONFIG+="webcore_debug v8base_debug" WEBENGINE_CONFIG+="use_system_icu" ..
 
 # workaround, disable parallel compilation as it fails to compile in brew
 make %{?_smp_mflags}
@@ -421,6 +422,10 @@ popd
 
 
 %changelog
+* Fri Mar 18 2016 Kevin Kofler <Kevin@tigcc.ticalc.org> - 5.6.0-3
+- Build with CONFIG+="webcore_debug v8base_debug"
+- Force -fno-delete-null-pointer-checks through CXXFLAGS, Qt flags not used here
+
 * Fri Mar 18 2016 Kevin Kofler <Kevin@tigcc.ticalc.org> - 5.6.0-2
 - Avoid checking for the nonexistent icudtl.dat and silence the warnings