diff --git a/src/main/java/de/avatic/lcc/model/user/SysUserNode.java b/src/main/java/de/avatic/lcc/model/user/SysUserNode.java
index 406c6ce..69086be 100644
--- a/src/main/java/de/avatic/lcc/model/user/SysUserNode.java
+++ b/src/main/java/de/avatic/lcc/model/user/SysUserNode.java
@@ -3,6 +3,8 @@ package de.avatic.lcc.model.user;
 
 import jakarta.validation.constraints.*;
 import org.springframework.data.annotation.Id;
+import org.springframework.data.jdbc.core.mapping.AggregateReference;
+import org.springframework.data.relational.core.mapping.Column;
 import org.springframework.data.relational.core.mapping.Table;
 
 import java.math.BigDecimal;
@@ -13,6 +15,10 @@ public class SysUserNode {
     @Id
     private Integer id;
 
+    @NotNull
+    @Column("user_id")
+    private AggregateReference<SysUser, Integer> user;
+
     @NotNull
     @Size(max = 254)
     private String name;