diff --git a/Gemfile b/Gemfile
index e823ed4d..32921442 100644
--- a/Gemfile
+++ b/Gemfile
@@ -20,7 +20,6 @@
 # along with this program; if not, write to the Free Software
 # Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
 
-gem 'rubyzip', '>= 1.1.3'
 gem 'zip-zip'
 gem 'simple_enum'
 gem 'uuidtools'
@@ -30,6 +29,7 @@ gem 'active_record_union'
 # Redmine extensions
 unless %w(easyproject easy_gantt).any? { |plugin| Dir.exist?(File.expand_path("../../#{plugin}", __FILE__)) }
   gem 'redmine_extensions', '~> 0.3.9'
+  gem 'rubyzip', '>= 1.1.3'
 end
 
 # Dav4Rack