diff --git a/mingw-w64-graphviz/PKGBUILD b/mingw-w64-graphviz/PKGBUILD
index 66bf43bf9b..16860bd338 100644
--- a/mingw-w64-graphviz/PKGBUILD
+++ b/mingw-w64-graphviz/PKGBUILD
@@ -4,7 +4,7 @@ _realname=graphviz
 pkgbase=mingw-w64-${_realname}
 pkgname="${MINGW_PACKAGE_PREFIX}-${_realname}"
 pkgver=2.40.1
-pkgrel=9
+pkgrel=10
 pkgdesc="Graph Visualization Software (mingw-w64)"
 arch=('any')
 url='http://www.graphviz.org/'
@@ -81,7 +81,8 @@ prepare() {
 
 build() {
   local gd_incdir=$(pkg-config --variable=includedir gdlib)
-  cd "${srcdir}"/${_realname}-${pkgver}
+  CFLAGS+=" -Wno-sign-conversion -Wno-sign-compare -Wno-conversion"
+  CXXFLAGS+=" -Wno-sign-conversion -Wno-sign-compare -Wno-conversion"
   [[ -d "${srcdir}"/build-${CARCH} ]] && rm -rf "${srcdir}"/build-${CARCH}
   mkdir -p "${srcdir}"/build-${CARCH} && cd "${srcdir}"/build-${CARCH}
   ../${_realname}-${pkgver}/configure \