diff --git a/CMS_CORE_Library/DataStructures.cs b/CMS_CORE_Library/DataStructures.cs
index 91f5385..f05a67e 100644
--- a/CMS_CORE_Library/DataStructures.cs
+++ b/CMS_CORE_Library/DataStructures.cs
@@ -88,6 +88,13 @@ namespace CMS_CORE_Library
             public PowerOnDataModel AxisReset { get; set; }
             public PowerOnDataModel WaterjetPump { get; set; }
 
+            public PostPowerOnModel()
+            {
+                AxisReset = new PowerOnDataModel();
+                WaterjetPump = new PowerOnDataModel();
+
+            }
+
             public override bool Equals(object obj)
             {
                 var item = obj as PostPowerOnModel;