diff --git a/GUI.NET/InteropEmu.cs b/GUI.NET/InteropEmu.cs
index 3fdb50454..a77c590b4 100644
--- a/GUI.NET/InteropEmu.cs
+++ b/GUI.NET/InteropEmu.cs
@@ -1368,6 +1368,7 @@ public struct PPUState
 		[MarshalAs(UnmanagedType.I1)]
 		public bool WriteToggle;
 
+		public UInt16 bgTileAddr;
 		public UInt16 HighBitShift;
 		public UInt16 LowBitShift;
 	}