diff --git a/grade/grading/form/rubric/styles.css b/grade/grading/form/rubric/styles.css
index 460fbb96fc9..e45913bb5c8 100644
--- a/grade/grading/form/rubric/styles.css
+++ b/grade/grading/form/rubric/styles.css
@@ -101,7 +101,7 @@
 }
 
 .gradingform_rubric .criterion .description {
-    width: 150px;
+    min-width: 150px;
     font-weight: bold;
 }