diff --git a/src/main/java/org/olat/modules/lecture/manager/LectureBlockDAO.java b/src/main/java/org/olat/modules/lecture/manager/LectureBlockDAO.java
index 3fcd840b9070891830214c37aef86ec65d4e618f..d19e39560f48028efdec9bb63079aa37a5257cb6 100644
--- a/src/main/java/org/olat/modules/lecture/manager/LectureBlockDAO.java
+++ b/src/main/java/org/olat/modules/lecture/manager/LectureBlockDAO.java
@@ -931,7 +931,7 @@ public class LectureBlockDAO {
 			query.setParameter("managerKey", searchParams.getManager().getKey());
 		}
 		if(refId != null) {
-			query.setParameter("refId", refId);
+			query.setParameter("idKey", refId);
 		}
 		if(StringHelper.containsNonWhitespace(fuzzyString)) {
 			query.setParameter("fuzzyString", fuzzyString);