diff --git a/SwitchGiftDataManager.Core/Classes/WCManager/Wondercard.cs b/SwitchGiftDataManager.Core/Classes/WCManager/Wondercard.cs
index 444e168..4df89d1 100644
--- a/SwitchGiftDataManager.Core/Classes/WCManager/Wondercard.cs
+++ b/SwitchGiftDataManager.Core/Classes/WCManager/Wondercard.cs
@@ -35,11 +35,11 @@ namespace SwitchGiftDataManager.Core
             if (Content is null)
                 return false;
 
-            //if (!IsChecksumValid())
-                //return false;
-
             if (!IsChecksumValid())
-                UpdateChecksum();
+                return false;
+
+            //if (!IsChecksumValid())
+                //UpdateChecksum();
 
             return true;
         }