diff --git a/PKGBUILD-nacl b/PKGBUILD-nacl
index 5f806d805..2f941ee3f 100644
--- a/PKGBUILD-nacl
+++ b/PKGBUILD-nacl
@@ -3,7 +3,7 @@ pkgname=nacl-magnum
 pkgver=dev
 pkgrel=1
 pkgdesc="OpenGL 3 graphics engine (NaCl x86-64 version)"
-arch=('x86_64')
+arch=('any')
 url="https://github.com/mosra/magnum"
 license=('LGPLv3')
 depends=('nacl-corrade')
@@ -11,6 +11,20 @@ makedepends=('nacl-sdk' 'cmake')
 options=(!makeflags !buildflags !strip)
 
 build() {
+    # Build 32bit
+    mkdir -p "$startdir/build-nacl-x86-32"
+    cd "$startdir/build-nacl-x86-32"
+
+    cmake .. \
+        -DCMAKE_MODULE_PATH="$startdir/toolchains/modules" \
+        -DCMAKE_TOOLCHAIN_FILE="$startdir/toolchains/generic/NaCl-glibc-x86-32.cmake" \
+        -DCMAKE_BUILD_TYPE=Release \
+        -DCMAKE_INSTALL_PREFIX=/usr/nacl \
+        -DWITH_NACLAPPLICATION=ON \
+        -DLIB_SUFFIX=/32
+    make
+
+    # Build 64bit
     mkdir -p "$startdir/build-nacl-x86-64"
     cd "$startdir/build-nacl-x86-64"
 
@@ -24,6 +38,12 @@ build() {
 }
 
 package() {
+    # Install 32bit
+    cd "$startdir/build-nacl-x86-32"
+    make DESTDIR="$pkgdir/" install
+
+    # Install 64bit (the headers will be overwritten, but they are (and should
+    # be) the same for both versions
     cd "$startdir/build-nacl-x86-64"
     make DESTDIR="$pkgdir/" install
 }