diff --git a/model/src/main/java/one/nem/kidshift/model/ParentModel.java b/model/src/main/java/one/nem/kidshift/model/ParentModel.java
index d329881..81a7a89 100644
--- a/model/src/main/java/one/nem/kidshift/model/ParentModel.java
+++ b/model/src/main/java/one/nem/kidshift/model/ParentModel.java
@@ -25,6 +25,9 @@ public class ParentModel {
         this.displayName = displayName;
     }
 
+    public ParentModel() {
+    }
+
     // Getter
 
     public String getInternalId() {