diff --git a/app/helpers/projects_helper.rb b/app/helpers/projects_helper.rb
index f535b01b2ec..3199ff3b99a 100644
--- a/app/helpers/projects_helper.rb
+++ b/app/helpers/projects_helper.rb
@@ -81,7 +81,7 @@ module ProjectsHelper
   end
 
   def link_to_toggle_star(title, starred, signed_in)
-    cls = 'star-btn btn btn-primary'
+    cls = 'star-btn btn btn-default'
     cls << ' disabled' unless signed_in
 
     toggle_html = content_tag('span', class: 'toggle') do
diff --git a/app/views/projects/_home_panel.html.haml b/app/views/projects/_home_panel.html.haml
index 3bb70458b16..599afe6e779 100644
--- a/app/views/projects/_home_panel.html.haml
+++ b/app/views/projects/_home_panel.html.haml
@@ -28,10 +28,10 @@
         .fork-buttons
           - if current_user && can?(current_user, :fork_project, @project) && @project.namespace != current_user.namespace
             - if current_user.already_forked?(@project) && current_user.manageable_namespaces.size < 2
-              = link_to namespace_project_path(current_user, current_user.fork_of(@project)), title: 'Go to your fork', class: 'btn btn-primary' do
+              = link_to namespace_project_path(current_user, current_user.fork_of(@project)), title: 'Go to your fork', class: 'btn btn-default' do
                 = link_to_toggle_fork
             - else
-              = link_to new_namespace_project_fork_path(@project.namespace, @project), title: "Fork project", class: 'btn btn-primary' do
+              = link_to new_namespace_project_fork_path(@project.namespace, @project), title: "Fork project", class: 'btn btn-default' do
                 = link_to_toggle_fork
     - unless @project.empty_repo?
       - if can? current_user, :download_code, @project