diff --git a/BizHawk.Emulation.Cores/Consoles/Sony/PSX/Octoshock.cs b/BizHawk.Emulation.Cores/Consoles/Sony/PSX/Octoshock.cs
index 9245dbf141..96473cf8b7 100644
--- a/BizHawk.Emulation.Cores/Consoles/Sony/PSX/Octoshock.cs
+++ b/BizHawk.Emulation.Cores/Consoles/Sony/PSX/Octoshock.cs
@@ -230,6 +230,11 @@ namespace BizHawk.Emulation.Cores.Sony.PSX
 			VirtualWidth = 800;
 			VirtualHeight = 480;
 
+			//set a default framebuffer
+			BufferWidth = VirtualWidth;
+			BufferHeight = VirtualHeight;
+			frameBuffer = new int[BufferWidth*BufferHeight];
+
 			if (disc != null)
 			{
 				OctoshockDll.shock_OpenTray(psx);