diff --git a/extra/qt5-webkit/PKGBUILD b/extra/qt5-webkit/PKGBUILD
index af175081d..53f952646 100644
--- a/extra/qt5-webkit/PKGBUILD
+++ b/extra/qt5-webkit/PKGBUILD
@@ -12,7 +12,7 @@ highmem=1
 pkgname=qt5-webkit
 _pkgver=5.212.0-alpha3
 pkgver=${_pkgver/-/}
-pkgrel=2
+pkgrel=3
 arch=(x86_64)
 url='https://www.qt.io'
 license=(GPL3 LGPL3 FDL custom)
@@ -41,6 +41,7 @@ build() {
 
   cmake ../qtwebkit-$_pkgver \
     -DCMAKE_INSTALL_PREFIX=/usr \
+    -DCMAKE_CXX_FLAGS="${CXXFLAGS} -DNDEBUG" \
     -DPORT=Qt \
     -DENABLE_TOOLS=OFF \
     $CONFIG