diff --git a/FactorySystemApi/Web References/Plm_Formula/Reference.cs b/FactorySystemApi/Web References/Plm_Formula/Reference.cs
index 115bf5d..1c6d7f9 100644
--- a/FactorySystemApi/Web References/Plm_Formula/Reference.cs	
+++ b/FactorySystemApi/Web References/Plm_Formula/Reference.cs	
@@ -637,8 +637,26 @@ namespace FactorySystemApi.Plm_Formula {
         private string versionField;
 
 
-        public string SP { get; set; }
-        public string SP_Version { get; set; }
+        public string SP { get
+            {
+                return this.codeField;
+            }
+            set
+            {
+                this.codeField = value;
+            } 
+        }
+        public string SP_Version
+        {
+            get
+            {
+                return this.versionField;
+            }
+            set
+            {
+                this.versionField = value;
+            }
+        }
 
         /// <remarks/>
         public string Code {