diff --git a/FModel/ViewModels/AesManagerViewModel.cs b/FModel/ViewModels/AesManagerViewModel.cs
index 90f34e58..9a8c6f36 100644
--- a/FModel/ViewModels/AesManagerViewModel.cs
+++ b/FModel/ViewModels/AesManagerViewModel.cs
@@ -56,7 +56,7 @@ namespace FModel.ViewModels
             if (e.PropertyName != "Key" || sender is not FullyObservableCollection<FileItem> collection)
                 return;
 
-            var key = collection[e.CollectionIndex].Key = FixKey(collection[e.CollectionIndex].Key);
+            var key = FixKey(collection[e.CollectionIndex].Key);
             if (e.CollectionIndex == 0)
             {
                 if (!HasChange)
diff --git a/FModel/ViewModels/CUE4ParseViewModel.cs b/FModel/ViewModels/CUE4ParseViewModel.cs
index 6d572b4e..09d6c3b0 100644
--- a/FModel/ViewModels/CUE4ParseViewModel.cs
+++ b/FModel/ViewModels/CUE4ParseViewModel.cs
@@ -218,7 +218,8 @@ namespace FModel.ViewModels
                 {
                     cancellationToken.ThrowIfCancellationRequested(); // cancel if needed
 
-                    var k = key.Key.Length == 66 ? key.Key.Trim() : Constants.ZERO_64_CHAR;
+                    var k = key.Key.Trim();
+                    if (k.Length != 66) k = Constants.ZERO_64_CHAR;
                     Provider.SubmitKey(key.Guid, new FAesKey(k));
                 }