diff --git a/BizHawk.Emulation/Consoles/Nintendo/NES/iNES.cs b/BizHawk.Emulation/Consoles/Nintendo/NES/iNES.cs
index f8d8ac93c5..fd6c3e5b10 100644
--- a/BizHawk.Emulation/Consoles/Nintendo/NES/iNES.cs
+++ b/BizHawk.Emulation/Consoles/Nintendo/NES/iNES.cs
@@ -60,6 +60,7 @@ static string ClassifyTable = @"
 2	128	0	8	0	NES-UNROM; mega man
 2	256	0	8	0	NES-UOROM; paperboy 2
 3	32	32	8	0	NES-CNROM; adventure island
+4	128	128	8	0	NES-TSROM; double dragon 2 (should be TL1ROM but maybe this will work)
 7	128	0	8	0	NES-ANROM; marble madness
 7	256	0	8	8	NES-AOROM; battletoads
 11	32	16	8	0	Discrete_74x377