diff --git a/extra/ruby/PKGBUILD b/extra/ruby/PKGBUILD
index a90e33fde..ae1f571f4 100644
--- a/extra/ruby/PKGBUILD
+++ b/extra/ruby/PKGBUILD
@@ -9,7 +9,7 @@
 
 pkgname=('ruby' 'ruby-docs')
 pkgver=2.1.1
-pkgrel=1
+pkgrel=2
 arch=('i686' 'x86_64')
 url='http://www.ruby-lang.org/en/'
 license=('BSD' 'custom')
@@ -55,7 +55,7 @@ check() {
 
 package_ruby() {
   pkgdesc='An object-oriented language for quick and easy programming'
-  depends=('gdbm' 'openssl' 'libffi' 'libyaml')
+  depends=('gdbm' 'openssl' 'libffi' 'libyaml' 'gmp' 'zlib')
   optdepends=('ruby-docs: Ruby documentation') # 'tk: for Ruby/TK'
   provides=('rubygems' 'rake')
   conflicts=('rake')