diff --git a/src/fsparser.cpp b/src/fsparser.cpp
index d25ee60..c2ad627 100644
--- a/src/fsparser.cpp
+++ b/src/fsparser.cpp
@@ -143,6 +143,7 @@ int FsParser::parse()
 		case 0x1100181b: /* GW1N-2B   */
 		case 0x0300081b: /* GW1NS-2   */
 		case 0x0300181b: /* GW1NSx-2C */
+		case 0x0100381b: /* GW1N-4(ES)*/
 		case 0x1100381b: /* GW1N-4B   */
 			nb_line = 494;
 			addr_length = 2296;