diff --git a/theme/boost/scss/moodle/grade.scss b/theme/boost/scss/moodle/grade.scss
index 893f8fabd9f..5d92a34c2f0 100644
--- a/theme/boost/scss/moodle/grade.scss
+++ b/theme/boost/scss/moodle/grade.scss
@@ -33,6 +33,7 @@
 
 .path-grade-report-grader {
     #region-main {
+        min-width: 100%;
         width: auto;
         & > .card {
             width: auto;