diff --git a/ArcFormats/KiriKiri/KiriKiriCx.cs b/ArcFormats/KiriKiri/KiriKiriCx.cs
index d119f740..7b0d9712 100644
--- a/ArcFormats/KiriKiri/KiriKiriCx.cs
+++ b/ArcFormats/KiriKiri/KiriKiriCx.cs
@@ -55,8 +55,8 @@ namespace GameRes.Formats.KiriKiri
     [Serializable]
     public class CxEncryption : ICrypt
     {
-        private uint  m_mask;
-        private uint  m_offset;
+        protected uint  m_mask;
+        protected uint  m_offset;
 
         protected byte[]     PrologOrder;
         protected byte[]  OddBranchOrder;
@@ -207,7 +207,7 @@ namespace GameRes.Formats.KiriKiri
             Decrypt (entry, offset, values, pos, count);
         }
 
-        Tuple<uint, uint> ExecuteXCode (uint hash)
+        protected Tuple<uint, uint> ExecuteXCode (uint hash)
         {
             uint seed = hash & 0x7f;
             if (null == m_program_list[seed])