diff --git a/app/views/organizations/organization_users/_detail.json.jbuilder b/app/views/organizations/organization_users/_detail.json.jbuilder
index 78040e90e..7590da02e 100644
--- a/app/views/organizations/organization_users/_detail.json.jbuilder
+++ b/app/views/organizations/organization_users/_detail.json.jbuilder
@@ -7,7 +7,7 @@ json.team_names user.teams.where("teams.organization_id=?", organization.id).plu
 join_date =  if user.organization_users.find_by(:organization_id => organization.id).present?
                user.organization_users.find_by(:organization_id => organization.id).created_at.strftime("%Y-%m-%d")
              elsif user.members.joins(:project).find_by(project: organization.projects).present?
-               user.members.joins(:project).find_by(project: organization.projects).created_at.strftime("%Y-%m-%d")
+               user.members.joins(:project).find_by(project: organization.projects).created_on.strftime("%Y-%m-%d")
              else
                user.created_on.strftime("%Y-%m-%d")
              end