diff --git a/sys/player/telnetneg.h b/sys/player/telnetneg.h
index 415ed90..6a5f1ca 100644
--- a/sys/player/telnetneg.h
+++ b/sys/player/telnetneg.h
@@ -9,6 +9,7 @@
 #ifndef _TELNETNEG_H_
 #define _TELNETNEG_H_
 
+#define P_TELNET_KEEPALIVE_DELAY "p_lib_telnet_alive_delay"
 #endif
 
 #ifdef NEED_PROTOTYPES