diff --git a/CODE-mp/game/q_shared.h b/CODE-mp/game/q_shared.h
index 189c42a..d77436b 100644
--- a/CODE-mp/game/q_shared.h
+++ b/CODE-mp/game/q_shared.h
@@ -204,6 +204,8 @@ static inline float LittleFloat (const float l) { return FloatSwap(&l); }
 
 #ifdef __i386__
 #define	CPUSTRING	"linux-i386"
+#elif defined(__amd64__) || defined(__x86_64__)
+#define	CPUSTRING	"linux-amd64"
 #elif defined __axp__
 #define	CPUSTRING	"linux-alpha"
 #else