diff --git a/li.strolch.agent/src/main/java/li/strolch/agent/impl/TransientElementMap.java b/li.strolch.agent/src/main/java/li/strolch/agent/impl/TransientElementMap.java
index c9edd1a75..5631c9f8d 100644
--- a/li.strolch.agent/src/main/java/li/strolch/agent/impl/TransientElementMap.java
+++ b/li.strolch.agent/src/main/java/li/strolch/agent/impl/TransientElementMap.java
@@ -316,7 +316,7 @@ public abstract class TransientElementMap<T extends StrolchRootElement> implemen
 			throw new StrolchPersistenceException(msg);
 		}
 
-		// assert no object already exists with this id
+		// assert object already exists with this id
 		if (!byType.containsKey(element.getId())) {
 			String msg = "The element does not yet exist with the type \"{0}\" and id \"{1}\". Use add() for new objects!"; //$NON-NLS-1$
 			msg = MessageFormat.format(msg, element.getType(), element.getId());