diff --git a/CommonCore/SQL/src/de/steamwar/sql/NodeData.java b/CommonCore/SQL/src/de/steamwar/sql/NodeData.java
index bd543be0..0332193c 100644
--- a/CommonCore/SQL/src/de/steamwar/sql/NodeData.java
+++ b/CommonCore/SQL/src/de/steamwar/sql/NodeData.java
@@ -83,7 +83,7 @@ public class NodeData {
     @Field(keys = {Table.PRIMARY})
     private final int nodeId;
 
-    @Field
+    @Field(keys = {Table.PRIMARY})
     private Timestamp createdAt;
 
     @Field