diff --git a/ppu.cpp b/ppu.cpp
index 3375919aa..8bfd5a968 100644
--- a/ppu.cpp
+++ b/ppu.cpp
@@ -1141,6 +1141,7 @@ void S9xSetPPU (uint8 Byte, uint16 Address)
 	}
 
 	Memory.FillRAM[Address] = Byte;
+	OpenBus = Byte;
 }
 
 uint8 S9xGetPPU (uint16 Address)