diff --git a/app/controllers/projects_controller.rb b/app/controllers/projects_controller.rb
index 347d469282b..f07820e9d23 100644
--- a/app/controllers/projects_controller.rb
+++ b/app/controllers/projects_controller.rb
@@ -70,7 +70,7 @@ class ProjectsController < ApplicationController
 
     Projects::SetAttributesService
       .new(user: current_user, model: @project, contract_class: EmptyContract)
-      .call({})
+      .call(params.permit(:parent_id))
 
     render layout: 'no_menu'
   end
diff --git a/app/helpers/projects_helper.rb b/app/helpers/projects_helper.rb
index b7a8d51dd8f..95bff11f2eb 100644
--- a/app/helpers/projects_helper.rb
+++ b/app/helpers/projects_helper.rb
@@ -160,7 +160,7 @@ module ProjectsHelper
   def project_more_menu_subproject_item(project)
     if User.current.allowed_to? :add_subprojects, project
       [t(:label_subproject_new),
-       new_project_path(parent_id: project),
+       new_project_path(parent_id: project.id),
        class: 'icon-context icon-add',
        title: t(:label_subproject_new)]
     end
diff --git a/app/views/project_settings/show.html.erb b/app/views/project_settings/show.html.erb
index b172b508d17..8dbdeaf395d 100644
--- a/app/views/project_settings/show.html.erb
+++ b/app/views/project_settings/show.html.erb
@@ -31,7 +31,7 @@ See docs/COPYRIGHT.rdoc for more details.
 <%= toolbar title: l(:label_project_settings) do %>
   <% if User.current.allowed_to?(:add_subprojects, @project) %>
     <li class="toolbar-item">
-      <%= link_to new_project_path(parent_id: @project),
+      <%= link_to new_project_path(parent_id: @project.id),
           { class: 'button -alt-highlight',
             aria: {label: t(:label_subproject_new)},
             title: t(:label_subproject_new)} do %>
diff --git a/spec/controllers/projects_controller_spec.rb b/spec/controllers/projects_controller_spec.rb
index 4aa0a88d874..59291d4aaab 100644
--- a/spec/controllers/projects_controller_spec.rb
+++ b/spec/controllers/projects_controller_spec.rb
@@ -49,6 +49,17 @@ describe ProjectsController, type: :controller do
       expect(response).to be_successful
       expect(response).to render_template 'new'
     end
+
+    context 'with parent project' do
+      let!(:parent) { FactoryBot.create :project, name: 'Parent' }
+
+      it 'sets the parent of the project' do
+        get 'new', params: { parent_id: parent.id }
+        expect(response).to be_successful
+        expect(response).to render_template 'new'
+        expect(assigns(:project).parent).to eq parent
+      end
+    end
   end
 
   describe 'index.html' do
diff --git a/spec_legacy/functional/projects_controller_spec.rb b/spec_legacy/functional/projects_controller_spec.rb
index 0d3dfaa036a..78bbb92e533 100644
--- a/spec_legacy/functional/projects_controller_spec.rb
+++ b/spec_legacy/functional/projects_controller_spec.rb
@@ -65,7 +65,8 @@ describe ProjectsController, type: :controller do
       end
 
       it 'should accept get' do
-        get :new, params: { parent_id: 'ecookbook' }
+        project = Project.find_by(identifier: 'ecookbook')
+        get :new, params: { parent_id: project.id }
         assert_response :success
         assert_template 'new'
         # parent project selected