diff --git a/src/main/java/org/caosdb/server/jobs/core/CheckParValid.java b/src/main/java/org/caosdb/server/jobs/core/CheckParValid.java
index 7045c7df43d0831a99e7acea5e6dc8c7d4abee9e..8895ae9adb4d12da2f7789a8798ca0fb9d183c05 100644
--- a/src/main/java/org/caosdb/server/jobs/core/CheckParValid.java
+++ b/src/main/java/org/caosdb/server/jobs/core/CheckParValid.java
@@ -67,8 +67,8 @@ public class CheckParValid extends EntityJob {
           if (parent.hasId()) {
             // check parent by id
             if (!parent.getId().isTemporary()) {
-              // id >= 0 (parent is yet in the database)
-              // retrieve parent by id
+              // id isn't temporary, i.e., parent is already in the database and
+              // can be retrieved by id
               final EntityInterface foreign = retrieveValidSparseEntityById(parent.getId(), null);
               // check permissions for this
               // parentforeign.acceptObserver(o)