diff --git a/code/__DEFINES/combat.dm b/code/__DEFINES/combat.dm
index caf7f7964b..c088e81c4a 100644
--- a/code/__DEFINES/combat.dm
+++ b/code/__DEFINES/combat.dm
@@ -21,6 +21,9 @@
 #define OXYLOSS 8
 #define SHAME 16
 
+//Citadel code
+#define AROUSAL	32
+
 #define STUN		"stun"
 #define KNOCKDOWN		"knockdown"
 #define UNCONSCIOUS	"unconscious"