diff --git a/mingw-w64-openal/PKGBUILD b/mingw-w64-openal/PKGBUILD
index 3a5a220740..e864dc875f 100644
--- a/mingw-w64-openal/PKGBUILD
+++ b/mingw-w64-openal/PKGBUILD
@@ -4,7 +4,7 @@ _realname=openal
 pkgbase=mingw-w64-${_realname}
 pkgname="${MINGW_PACKAGE_PREFIX}-${_realname}"
 pkgver=1.21.1
-pkgrel=3
+pkgrel=4
 pkgdesc="OpenAL audio library for use with opengl (mingw-w64)"
 arch=('any')
 mingw_arch=('mingw32' 'mingw64' 'ucrt64' 'clang64' 'clang32')
@@ -63,7 +63,6 @@ build() {
   [[ -d "${srcdir}"/shared-${MSYSTEM} ]] && rm -rf ${srcdir}/shared-${MSYSTEM}
   mkdir -p "${srcdir}/shared-${MSYSTEM}" && cd "${srcdir}/shared-${MSYSTEM}"
 
-  DXSDK_DIR=${MINGW_PREFIX}/${MINGW_CHOST} \
   MSYS2_ARG_CONV_EXCL="-DCMAKE_INSTALL_PREFIX=" \
   ${MINGW_PREFIX}/bin/cmake \
     -G"Ninja" \
@@ -73,7 +72,6 @@ build() {
     -DALSOFT_UTILS=ON \
     -DALSOFT_NO_CONFIG_UTIL=ON \
     -DLIBTYPE=SHARED \
-    -DDSOUND_INCLUDE_DIR=${MINGW_PREFIX}/${MINGW_CHOST}/include \
     ../openal-soft-${pkgver}
   ${MINGW_PREFIX}/bin/cmake.exe --build ./
 
@@ -81,7 +79,6 @@ build() {
   mkdir -p "${srcdir}/static-${MSYSTEM}" && cd "${srcdir}/static-${MSYSTEM}"
 
   # enabling utilities on static causes an undefined reference error.
-  DXSDK_DIR=${MINGW_PREFIX}/${MINGW_CHOST} \
   MSYS2_ARG_CONV_EXCL="-DCMAKE_INSTALL_PREFIX=" \
   ${MINGW_PREFIX}/bin/cmake \
     -G"Ninja" \
@@ -91,7 +88,6 @@ build() {
     -DALSOFT_UTILS=OFF \
     -DALSOFT_NO_CONFIG_UTIL=ON \
     -DLIBTYPE=STATIC \
-    -DDSOUND_INCLUDE_DIR=${MINGW_PREFIX}/${MINGW_CHOST}/include \
     ../openal-soft-${pkgver}
   ${MINGW_PREFIX}/bin/cmake.exe --build ./
 }