diff --git a/ArcFormats/KiriKiri/KiriKiriCx.cs b/ArcFormats/KiriKiri/KiriKiriCx.cs
index 855d8597..01a33002 100644
--- a/ArcFormats/KiriKiri/KiriKiriCx.cs
+++ b/ArcFormats/KiriKiri/KiriKiriCx.cs
@@ -26,6 +26,7 @@
 using System;
 using System.Collections.Generic;
 using System.Diagnostics;
+using System.Runtime.Serialization;
 
 namespace GameRes.Formats.KiriKiri
 {
@@ -64,6 +65,12 @@ namespace GameRes.Formats.KiriKiri
         [NonSerialized]
         CxProgram[] m_program_list = new CxProgram[0x80];
 
+        [OnDeserialized()]
+        void PostDeserialization (StreamingContext context)
+        {
+            m_program_list = new CxProgram[0x80];
+        }
+
         public CxEncryption (CxScheme scheme)
         {
             m_mask = scheme.Mask;