diff --git a/DOAN.Common/Mobile/ParselabelHelper.cs b/DOAN.Common/Mobile/ParselabelHelper.cs
index 8eb2beb..2d23d90 100644
--- a/DOAN.Common/Mobile/ParselabelHelper.cs
+++ b/DOAN.Common/Mobile/ParselabelHelper.cs
@@ -16,7 +16,7 @@ namespace DOAN.Common.Mobile
         public  static string    ParseLabel01(string materialCode)
         {
             string materialCode_true = "";
-            if(string.IsNullOrEmpty(materialCode_true))
+            if(string.IsNullOrEmpty(materialCode))
             {
                 throw new ArgumentException("标签不合法，解析失败");
             }