diff --git a/src/DMAPI/tgs.dm b/src/DMAPI/tgs.dm
index 4493aef72c..d0cf1618a6 100644
--- a/src/DMAPI/tgs.dm
+++ b/src/DMAPI/tgs.dm
@@ -95,6 +95,8 @@
 #define TGS_EVENT_WATCHDOG_SHUTDOWN 15
 /// Before the watchdog detaches for a TGS update/restart. No parameters.
 #define TGS_EVENT_WATCHDOG_DETACH 16
+// We don't actually implement this value as the DMAPI can never receive it
+// #define TGS_EVENT_WATCHDOG_LAUNCH 17
 
 // OTHER ENUMS