diff --git a/app/services/projects/import_export/members_mapper.rb b/app/services/projects/import_export/members_mapper.rb
index 56abc131b16a81a7fc05009c6c5d2886188827b5..634683da5ce12ed2852073b1fdf7015237321a52 100644
--- a/app/services/projects/import_export/members_mapper.rb
+++ b/app/services/projects/import_export/members_mapper.rb
@@ -30,13 +30,14 @@ module Projects
       def assign_member(existing_user, member)
         member['user'] = existing_user
         project_member = ProjectMember.new(member_hash(member))
-        @project_member_map[member['id']] = project_member if project_member.save
+        @project_member_map[existing_user.id] = project_member if project_member.save
       end
 
       def member_hash(member)
         member.except('id').merge(source_id: @project_id)
       end
 
+      #TODO: If default, then we need to leave a comment 'Comment by <original username>' on comments
       def default_project_member
         @default_project_member ||=
           begin
diff --git a/spec/services/projects/import_export/members_mapper_spec.rb b/spec/services/projects/import_export/members_mapper_spec.rb
index 431626d5e78f32cf8c436cfc64dcb2d7e6a98404..dc6ccb5012187b839ef565d8fbb392fbd6ce6bfa 100644
--- a/spec/services/projects/import_export/members_mapper_spec.rb
+++ b/spec/services/projects/import_export/members_mapper_spec.rb
@@ -6,21 +6,27 @@ describe Projects::ImportExport::MembersMapper, services: true do
     let(:user) { create(:user) }
     let(:project) { create(:project, :public, name: 'searchable_project') }
     let(:user2) { create(:user) }
-    let(:exported_members) { [
-      {
-        "id" => 2,
-        "access_level" => 40,
-        "source_id" => 14,
-        "source_type" => "Project",
-        "user_id" => 19,
-        "notification_level" => 3,
-        "created_at" => "2016-03-11T10:21:44.822Z",
-        "updated_at" => "2016-03-11T10:21:44.822Z",
-        "created_by_id" => nil,
-        "invite_email" => nil,
-        "invite_token" => nil,
-        "invite_accepted_at" => nil,
-        "user" => { "email" => user2.email, "username" => user2.username } }] }
+    let(:exported_members) do
+      [{
+         "id" => 2,
+         "access_level" => 40,
+         "source_id" => 14,
+         "source_type" => "Project",
+         "user_id" => 19,
+         "notification_level" => 3,
+         "created_at" => "2016-03-11T10:21:44.822Z",
+         "updated_at" => "2016-03-11T10:21:44.822Z",
+         "created_by_id" => nil,
+         "invite_email" => nil,
+         "invite_token" => nil,
+         "invite_accepted_at" => nil,
+         "user" =>
+           {
+             "email" => user2.email,
+             "username" => user2.username
+           }
+       }]
+    end
 
     let(:members_mapper) do
       Projects::ImportExport::MembersMapper.new(
@@ -28,15 +34,15 @@ describe Projects::ImportExport::MembersMapper, services: true do
     end
 
     it 'maps a project member' do
-      expect(project_member_map_id(user2.id)).to eq(user2.id)
+      expect(project_member_user_id(user2.id)).to eq(user2.id)
     end
 
     it 'defaults to importer project member if it does not exist' do
-      expect(project_member_map_id(-1)).to eq(user.id)
+      expect(project_member_user_id(-1)).to eq(user.id)
     end
   end
 
-  def project_member_map_id(id)
-    members_mapper.map[id]['id']
+  def project_member_user_id(id)
+    members_mapper.map[id].user.id
   end
 end