diff --git a/server/AyaNova/biz/CustomerBiz.cs b/server/AyaNova/biz/CustomerBiz.cs
index dec2071e..e576217f 100644
--- a/server/AyaNova/biz/CustomerBiz.cs
+++ b/server/AyaNova/biz/CustomerBiz.cs
@@ -225,9 +225,9 @@ namespace AyaNova.Biz
             }
 
 
-            if (proposedObj.BillHeadOffice && (proposedObj.HeadOfficeID == null || proposedObj.HeadOfficeID == 0))
+            if (proposedObj.BillHeadOffice && (proposedObj.HeadOfficeId == null || proposedObj.HeadOfficeId == 0))
             {
-                AddError(ApiErrorCode.VALIDATION_REQUIRED, "HeadOfficeID");
+                AddError(ApiErrorCode.VALIDATION_REQUIRED, "HeadOfficeId");
             }