diff --git a/src/main/java/li/strolch/model/StrolchElement.java b/src/main/java/li/strolch/model/StrolchElement.java
index d30e5c034..e9cfd3ca0 100644
--- a/src/main/java/li/strolch/model/StrolchElement.java
+++ b/src/main/java/li/strolch/model/StrolchElement.java
@@ -86,7 +86,7 @@ public interface StrolchElement extends Serializable, Comparable<StrolchElement>
 	 * Returns an {@link Element} object which is an XML representation of this object
 	 * 
 	 * @param doc
-	 *            the document to which this element is being written. The client should not append to the document, the
+	 *            the document to which this element is being written. The client must not append to the document, the
 	 *            caller will perform this as needed
 	 * 
 	 * @return