diff --git a/plugins/providers/docker/driver.rb b/plugins/providers/docker/driver.rb
index 35e8b73b8..37d109d9b 100644
--- a/plugins/providers/docker/driver.rb
+++ b/plugins/providers/docker/driver.rb
@@ -29,7 +29,7 @@ module VagrantPlugins
 
       def create(params, **opts, &block)
         image   = params.fetch(:image)
-        links   = params.fetch(:links)
+        links   = Array(params.fetch(:links))
         ports   = Array(params[:ports])
         volumes = Array(params[:volumes])
         name    = params.fetch(:name)
@@ -41,7 +41,7 @@ module VagrantPlugins
         run_cmd << "-d" if params[:detach]
         run_cmd += env.map { |k,v| ['-e', "#{k}=#{v}"] }
         run_cmd += expose.map { |p| ['--expose', "#{p}"] }
-        run_cmd += links.map { |k, v| ['--link', "#{k}:#{v}"] }
+        run_cmd += links.map { |l| ['--link', "#{l}"] }
         run_cmd += ports.map { |p| ['-p', p.to_s] }
         run_cmd += volumes.map { |v| ['-v', v.to_s] }
         run_cmd += %W(--privileged) if params[:privileged]
diff --git a/test/unit/plugins/providers/docker/config_spec.rb b/test/unit/plugins/providers/docker/config_test.rb
similarity index 100%
rename from test/unit/plugins/providers/docker/config_spec.rb
rename to test/unit/plugins/providers/docker/config_test.rb
diff --git a/test/unit/plugins/providers/docker/driver_spec.rb b/test/unit/plugins/providers/docker/driver_test.rb
similarity index 91%
rename from test/unit/plugins/providers/docker/driver_spec.rb
rename to test/unit/plugins/providers/docker/driver_test.rb
index c41bb3924..17ee06609 100644
--- a/test/unit/plugins/providers/docker/driver_spec.rb
+++ b/test/unit/plugins/providers/docker/driver_test.rb
@@ -16,6 +16,9 @@ describe VagrantPlugins::DockerProvider::Driver do
       cmd:        ['play', 'voodoo-chile'],
       ports:      '8080:80',
       volumes:    '/host/path:guest/path',
+      detach:     true,
+      links:      'janis:joplin',
+      env:        {key: 'value'},
       name:       cid,
       hostname:   'jimi-hendrix',
       privileged: true
@@ -28,7 +31,7 @@ describe VagrantPlugins::DockerProvider::Driver do
     end
 
     it 'sets container name' do
-      expect(cmd_executed).to match(/-name #{Regexp.escape params[:name]}/)
+      expect(cmd_executed).to match(/--name #{Regexp.escape params[:name]}/)
     end
 
     it 'forwards ports' do
@@ -39,8 +42,16 @@ describe VagrantPlugins::DockerProvider::Driver do
       expect(cmd_executed).to match(/-v #{params[:volumes]} .+ #{Regexp.escape params[:image]}/)
     end
 
+    it 'links containers' do
+      expect(cmd_executed).to match(/--link #{params[:links]} .+ #{Regexp.escape params[:image]}/)
+    end
+
+    it 'sets environmental variables' do
+      expect(cmd_executed).to match(/-e key=value .+ #{Regexp.escape params[:image]}/)
+    end
+
     it 'is able to run a privileged container' do
-      expect(cmd_executed).to match(/-privileged .+ #{Regexp.escape params[:image]}/)
+      expect(cmd_executed).to match(/--privileged .+ #{Regexp.escape params[:image]}/)
     end
 
     it 'sets the hostname if specified' do
diff --git a/test/unit/plugins/providers/docker/synced_folder_spec.rb b/test/unit/plugins/providers/docker/synced_folder_test.rb
similarity index 100%
rename from test/unit/plugins/providers/docker/synced_folder_spec.rb
rename to test/unit/plugins/providers/docker/synced_folder_test.rb