diff --git a/mod/quiz/report/overview/report.php b/mod/quiz/report/overview/report.php
index 72067d9b045..a18e8bc30d0 100644
--- a/mod/quiz/report/overview/report.php
+++ b/mod/quiz/report/overview/report.php
@@ -192,6 +192,7 @@ class quiz_report extends quiz_default_report {
 
             $table->column_suppress('picture');
             $table->column_suppress('fullname');
+            $table->column_suppress('idnumber');
             
             $table->no_sorting('feedbacktext');