diff --git a/Core/UnRom_180.h b/Core/UnRom_180.h
index c47c7ec4..ca61b8e9 100644
--- a/Core/UnRom_180.h
+++ b/Core/UnRom_180.h
@@ -11,6 +11,7 @@ protected:
 	void InitMapper() override
 	{
 		SelectPRGPage(0, 0);
+		SelectPRGPage(1, GetPowerOnByte() & 0x07);
 		SelectCHRPage(0, 0);
 	}