diff --git a/include/flashchips.h b/include/flashchips.h
index e901069..7871077 100644
--- a/include/flashchips.h
+++ b/include/flashchips.h
@@ -415,6 +415,7 @@
 #define GIGADEVICE_GD25LQ32	0x6016
 #define GIGADEVICE_GD25LQ64	0x6017	/* Same as GD25LQ64B (which is faster) */
 #define GIGADEVICE_GD25LQ128CD	0x6018
+#define GIGADEVICE_GD25LQ256D	0x6019	/* Same as GD25L[EB]256D/GD25LQ255E/GD25L[QE]256H/GD25LB256F/GD25LE255E */
 #define GIGADEVICE_GD25LR512ME	0x671a
 #define GIGADEVICE_GD25WQ80E	0x6514
 #define GIGADEVICE_GD29GL064CAB	0x7E0601