diff --git a/ruby-parser/PKGBUILD b/ruby-parser/PKGBUILD
new file mode 100644
index 0000000..7e7f0d4
--- /dev/null
+++ b/ruby-parser/PKGBUILD
@@ -0,0 +1,40 @@
+# Maintainer: George Rawlinson <grawlinson@archlinux.org>
+
+_gemname=parser
+pkgname=ruby-$_gemname
+pkgver=3.0.2.0
+pkgrel=1
+pkgdesc="A production-ready Ruby parser written in pure Ruby"
+arch=('any')
+url="https://github.com/whitequark/parser"
+license=('MIT')
+depends=('ruby' 'ruby-ast')
+makedepends=('ruby-rdoc')
+options=('!emptydirs')
+source=("https://rubygems.org/downloads/$_gemname-$pkgver.gem")
+noextract=("$_gemname-$pkgver.gem")
+b2sums=('efb8dd3ccfa24d02b3e85e92fcd08dea34bbc8a650842752529606a3e603027688d762ef64aa8f7007ed94c058d8d5b31e36c674394a82d04ce79014378add29')
+
+package() {
+  local _gemdir="$(ruby -e'puts Gem.default_dir')"
+
+  gem install \
+    --verbose \
+    --ignore-dependencies \
+    --no-user-install \
+    --install-dir "$pkgdir/$_gemdir" \
+    --bindir "$pkgdir/usr/bin" \
+    "$_gemname-$pkgver.gem"
+
+  # delete cache
+  cd "$pkgdir/$_gemdir"
+  rm -vrf cache
+
+  # delete unnecessary files & folders
+  cd "gems/$_gemname-$pkgver"
+  rm -vrf "$_gemname.gemspec"
+
+  # move license
+  install -vd "$pkgdir/usr/share/licenses/$pkgname"
+  mv -vt "$pkgdir/usr/share/licenses/$pkgname" LICENSE.txt
+}