diff --git a/PKHeX.Core/Saves/MemeCrypto/SwishCrypto.cs b/PKHeX.Core/Saves/MemeCrypto/SwishCrypto.cs
index cb6a0e374..c0ddffc5d 100644
--- a/PKHeX.Core/Saves/MemeCrypto/SwishCrypto.cs
+++ b/PKHeX.Core/Saves/MemeCrypto/SwishCrypto.cs
@@ -151,7 +151,7 @@ public sealed class SCBlock : BlockInfo
         /// <summary>
         /// Used to encrypt the rest of the block.
         /// </summary>
-        public uint Key { get; set; }
+        public readonly uint Key;
 
         /// <summary>
         /// What kind of block is it?
@@ -168,8 +168,7 @@ public sealed class SCBlock : BlockInfo
         /// </summary>
         public byte[] Data = Array.Empty<byte>();
 
-        private SCBlock(uint key) => Key = key;
-        internal SCBlock() { }
+        internal SCBlock(uint key) => Key = key;
         protected override bool ChecksumValid(byte[] data) => true;
         protected override void SetChecksum(byte[] data) { }
 
diff --git a/PKHeX.Core/Saves/Substructures/Gen8/Meta8.cs b/PKHeX.Core/Saves/Substructures/Gen8/Meta8.cs
index c81264139..4b5b84126 100644
--- a/PKHeX.Core/Saves/Substructures/Gen8/Meta8.cs
+++ b/PKHeX.Core/Saves/Substructures/Gen8/Meta8.cs
@@ -12,7 +12,7 @@ private static SCBlock[] GetBlankBlockArray(IReadOnlyList<uint> arr)
             for (int i = 0; i < blocks.Length; i++)
             {
                 int index = i * 2;
-                blocks[i] = new SCBlock { Key = arr[index], Data = new byte[(int)arr[index + 1]] };
+                blocks[i] = new SCBlock(arr[index]) { Data = new byte[(int)arr[index + 1]] };
             }
 
             return blocks;