diff --git a/src/main/java/org/olat/course/assessment/ui/AssessmentModeEditController.java b/src/main/java/org/olat/course/assessment/ui/AssessmentModeEditController.java
index 123b125d521322717b9a6c410b372adcafb83631..1935179edcf63427c79f399ac6b657e926fdbf97 100644
--- a/src/main/java/org/olat/course/assessment/ui/AssessmentModeEditController.java
+++ b/src/main/java/org/olat/course/assessment/ui/AssessmentModeEditController.java
@@ -458,7 +458,7 @@ public class AssessmentModeEditController extends FormBasicController {
 		courseElementsRestrictionEl.clearError();
 		if(courseElementsRestrictionEl.isAtLeastSelected(1)) {
 			if(elementKeys.isEmpty()) {
-				courseElementsRestrictionEl.setErrorKey("form.legende.mandatory", null);
+				courseElementsRestrictionEl.setErrorKey("error.course.element.mandatory", null);
 				allOk &= false;
 			}
 		}
diff --git a/src/main/java/org/olat/course/assessment/ui/_i18n/LocalStrings_de.properties b/src/main/java/org/olat/course/assessment/ui/_i18n/LocalStrings_de.properties
index 1359bcd8d99a5db409c3bd21151454fbdd66805d..07bfaaedb1fe4a4b0d13d5103dac320b21aae04b 100644
--- a/src/main/java/org/olat/course/assessment/ui/_i18n/LocalStrings_de.properties
+++ b/src/main/java/org/olat/course/assessment/ui/_i18n/LocalStrings_de.properties
@@ -43,6 +43,7 @@ delete.mode=Pr\u00FCfungskonfiguration l\u00F6schen
 edit=Bearbeiten
 elements=Kursbausteine
 error.atleastone=Bitte w\u00E4hlen Sie mindestens ein Pr\u00FCfungskonfiguration.
+error.course.element.mandatory=Bitte w\u00E4hlen Sie die entsprechenden Kurselemente.
 error.in.assessment=Sie d\u00FCrfen kein Pr\u00FCfungen l\u00F6schen die gerade gestartet sind.
 error.ip.range=Sie sind nicht im richtigen Netzwerk.
 error.safe.exam=Bitte benutzen Sie den Safe Exam Browser.
diff --git a/src/main/java/org/olat/course/assessment/ui/_i18n/LocalStrings_en.properties b/src/main/java/org/olat/course/assessment/ui/_i18n/LocalStrings_en.properties
index cff5e05810cb074a27f4831940696fc7e7a6ae0c..286e8c34d67c2801088390f47069c130d75307bc 100644
--- a/src/main/java/org/olat/course/assessment/ui/_i18n/LocalStrings_en.properties
+++ b/src/main/java/org/olat/course/assessment/ui/_i18n/LocalStrings_en.properties
@@ -42,6 +42,7 @@ edit=Edit
 elements=Course elements
 error.atleastone=Please, choose at least one exam setting.
 error.begin.after.end=The start date must be before the end date.
+error.course.element.mandatory=Please select the relevant course elements.
 error.group.missing=You must choose at least one group.
 error.ip.range=You are not in the right network.
 error.safe.exam=Please, use the Safe Exam Browser.