diff --git a/code/__DEFINES/sound.dm b/code/__DEFINES/sound.dm
index 5e0ae93d1b..6fea9601b6 100644
--- a/code/__DEFINES/sound.dm
+++ b/code/__DEFINES/sound.dm
@@ -3,6 +3,7 @@
 #define CHANNEL_ADMIN 1023
 #define CHANNEL_VOX 1022
 #define CHANNEL_JUKEBOX 1021
+#define CHANNEL_HEARTBEAT 1019 //sound channel for heartbeats
 
 //Citadel code
 #define CHANNEL_PRED 1020