diff --git a/AxibugEmuOnline.Client/Assets/VirtualNes.Core/Mapper/Mapper023.cs b/AxibugEmuOnline.Client/Assets/VirtualNes.Core/Mapper/Mapper023.cs
index 26d768b5..f804278f 100644
--- a/AxibugEmuOnline.Client/Assets/VirtualNes.Core/Mapper/Mapper023.cs
+++ b/AxibugEmuOnline.Client/Assets/VirtualNes.Core/Mapper/Mapper023.cs
@@ -40,7 +40,7 @@ namespace VirtualNes.Core
             irq_latch = 0;
             irq_clock = 0;
 
-            reg[9] = 1;
+            //reg[9] = 1;
 
             SetPROM_32K_Bank(0, 1, PROM_8K_SIZE - 2, PROM_8K_SIZE - 1);
             SetVROM_8K_Bank(0);