diff --git a/src/main/java/org/olat/modules/lecture/ui/TeacherRollCallController.java b/src/main/java/org/olat/modules/lecture/ui/TeacherRollCallController.java
index a25f3394d6294b957c9717c220f427855eb71d15..4d79e81dde4dfda767c517de4e77a61fec8c3d3d 100644
--- a/src/main/java/org/olat/modules/lecture/ui/TeacherRollCallController.java
+++ b/src/main/java/org/olat/modules/lecture/ui/TeacherRollCallController.java
@@ -153,7 +153,7 @@ public class TeacherRollCallController extends FormBasicController {
 			List<Identity> teachers = lectureService.getTeachers(lectureBlock);
 			for(Identity teacher:teachers) {
 				if(sb.length() > 0) sb.append(", ");
-				sb.append(StringHelper.escapeJavaScript(userManager.getUserDisplayName(teacher)));
+				sb.append(StringHelper.escapeHtml(userManager.getUserDisplayName(teacher)));
 			}
 			
 			Formatter formatter = Formatter.getInstance(getLocale());