diff --git a/xvaga/skeylink.h b/xvaga/skeylink.h
index 4b599b440..7a90ac905 100755
--- a/xvaga/skeylink.h
+++ b/xvaga/skeylink.h
@@ -40,6 +40,7 @@ extern "C" {
 #define SKEY_PR                '2' /* Model PR */
 #define SKEY_EP                '3' /* Model EP */
 #define SKEY_SP                '9' /* Model SP */
+#define SKEY_XM                'D' /* Model XM */
 #define SKEY_NET               'A' /* Model NET */
 
 /*
@@ -50,6 +51,7 @@ extern "C" {
 #define SKEY_MEMORY_128         '2' /* 128 bytes of memory */
 #define SKEY_MEMORY_416         '3' /* 416 bytes of memory */
 #define SKEY_MEMORY_896         '4' /* 896 bytes of memory */
+#define SKEY_MEMORY_8192        '8' /* 8192 bytes of memory */
 
 /*
  * Return codes