diff --git a/li.strolch.model/src/main/java/li/strolch/model/Tags.java b/li.strolch.model/src/main/java/li/strolch/model/Tags.java
index 26eda75fa..070ea63d4 100644
--- a/li.strolch.model/src/main/java/li/strolch/model/Tags.java
+++ b/li.strolch.model/src/main/java/li/strolch/model/Tags.java
@@ -67,9 +67,9 @@ public class Tags {
 
 		// elements
 
-		public static final String RESOURCE = "resource";
-		public static final String ORDER = "order";
-		public static final String ACTIVITY = "activity";
+		public static final String RESOURCE = Tags.RESOURCE;
+		public static final String ORDER = Tags.ORDER;
+		public static final String ACTIVITY = Tags.ACTIVITY;
 
 		public static final String OBJECT_TYPE = "objectType";