diff --git a/app/controllers/groups_controller.rb b/app/controllers/groups_controller.rb
index 6fd5de8a..cfa7e89f 100644
--- a/app/controllers/groups_controller.rb
+++ b/app/controllers/groups_controller.rb
@@ -54,10 +54,12 @@ class GroupsController < ApplicationController
   end
 
   def projects
-    @projects ||= if can?(current_user, :manage_group, @group)
-                    @group.projects.all
-                  else
-                    current_user.projects_sorted_by_activity.where(namespace_id: @group.id)
+    @projects ||= begin
+                    if can?(current_user, :manage_group, @group)
+                      @group.projects
+                    else
+                      current_user.projects.where(namespace_id: @group.id)
+                    end.sorted_by_activity.all
                   end
   end
 
diff --git a/app/models/project.rb b/app/models/project.rb
index 8df662db..68d09cae 100644
--- a/app/models/project.rb
+++ b/app/models/project.rb
@@ -73,7 +73,7 @@ class Project < ActiveRecord::Base
   scope :public_only, where(private_flag: false)
   scope :without_user, ->(user)  { where("id NOT IN (:ids)", ids: user.projects.map(&:id) ) }
   scope :not_in_group, ->(group) { where("id NOT IN (:ids)", ids: group.project_ids ) }
-  scope :authorized_for, ->(user) { joins(:users_projects) { where(user_id: user.id) } }
+  scope :sorted_by_activity, ->() { order("(SELECT max(events.created_at) FROM events WHERE events.project_id = projects.id) DESC") }
 
   class << self
     def active
@@ -285,4 +285,9 @@ class Project < ActiveRecord::Base
       merge_requests
     end
   end
+
+  def self.authorized_for user
+    projects = includes(:users_projects, :namespace)
+    projects = projects.where("users_projects.user_id = :user_id or projects.owner_id = :user_id or namespaces.owner_id = :user_id", user_id: user.id)
+  end
 end
diff --git a/app/models/user.rb b/app/models/user.rb
index d43e3cbb..4ec4c277 100644
--- a/app/models/user.rb
+++ b/app/models/user.rb
@@ -127,7 +127,8 @@ class User < ActiveRecord::Base
   def accessed_groups
     @accessed_groups ||= begin
                            groups = Group.where(id: self.projects.pluck(:namespace_id)).all
-                           groups + self.groups
+                           groups = groups + self.groups
+                           groups.uniq
                          end
   end
 end
diff --git a/app/roles/account.rb b/app/roles/account.rb
index 6df11d64..8157898f 100644
--- a/app/roles/account.rb
+++ b/app/roles/account.rb
@@ -80,7 +80,7 @@ module Account
   end
 
   def projects_sorted_by_activity
-    projects.order("(SELECT max(events.created_at) FROM events WHERE events.project_id = projects.id) DESC")
+    projects.sorted_by_activity
   end
 
   def namespaces