diff --git a/src/BizHawk.Emulation.Cores/Consoles/Nintendo/NES/Boards/Namcot1xx/Mapper088.cs b/src/BizHawk.Emulation.Cores/Consoles/Nintendo/NES/Boards/Namcot1xx/Mapper088.cs
index ea7e0a2f40..484936a031 100644
--- a/src/BizHawk.Emulation.Cores/Consoles/Nintendo/NES/Boards/Namcot1xx/Mapper088.cs
+++ b/src/BizHawk.Emulation.Cores/Consoles/Nintendo/NES/Boards/Namcot1xx/Mapper088.cs
@@ -32,7 +32,7 @@
 			}
 
 			BaseSetup();
-			SetMirrorType(EMirrorType.Vertical);
+			SetMirrorType(Cart.PadH, Cart.PadV);
 
 			chr_bank_mask_1k = Cart.ChrSize - 1;