diff --git a/BizHawk.Emulation/Consoles/Atari/2600/TIA.cs b/BizHawk.Emulation/Consoles/Atari/2600/TIA.cs
index adfc8d8986..20d7eefe6d 100644
--- a/BizHawk.Emulation/Consoles/Atari/2600/TIA.cs
+++ b/BizHawk.Emulation/Consoles/Atari/2600/TIA.cs
@@ -19,7 +19,7 @@ namespace BizHawk.Emulation.Consoles.Atari
 		static byte CXM0 = 0x04;
 		static byte CXM1 = 0x08;
 		static byte CXPF = 0x10;
-		static byte CXBL = 0x10;
+		static byte CXBL = 0x20;
 
 		struct missileData
 		{