diff --git a/Gemfile b/Gemfile
index dc9bf798..567b1603 100644
--- a/Gemfile
+++ b/Gemfile
@@ -4,6 +4,10 @@ source 'http://rubygems.org'
 
 gemspec
 
+group :test do
+  gem 'foreman_fog_proxmox'
+end
+
 FOREMAN_GEMFILE = File.expand_path('.foreman_app/Gemfile', __dir__)
 if File.exist?(FOREMAN_GEMFILE)
   instance_eval(Bundler.read_file(FOREMAN_GEMFILE))