diff --git a/app/services/projects/import_export.rb b/app/services/projects/import_export.rb
index e281925fe9cf0e45d02c274d6b19487f5605ea68..b0c0891edb5a4cd32668630c8658058ba9fbe366 100644
--- a/app/services/projects/import_export.rb
+++ b/app/services/projects/import_export.rb
@@ -17,7 +17,7 @@ module Projects
     private
 
     def members
-      [{ project_members: { include: [user: { only: [:email, :username] }] } }]
+      [{ project_members: { include: [user: { only: [:id, :email, :username] }] } }]
     end
 
     def storage_path