diff --git a/app/controllers/competitions/competitions_controller.rb b/app/controllers/competitions/competitions_controller.rb
index ee49428dd..5719f8f8b 100644
--- a/app/controllers/competitions/competitions_controller.rb
+++ b/app/controllers/competitions/competitions_controller.rb
@@ -213,7 +213,7 @@ class Competitions::CompetitionsController < Competitions::BaseController
       if personal
         row_cells_column << record_user.real_name
         row_cells_column << record_user.school_name
-        row_cells_column << record_user.student_id.present? ? (record_user.student_id.to_s + "\t") : "--"
+        row_cells_column << (record_user.student_id.present? ? (record_user.student_id.to_s + "\t") : "--")
       else
         row_cells_column << record.name
         row_cells_column << record.teachers_name