diff --git a/code/game/gamemodes/nuclear/nuclear_challenge.dm b/code/game/gamemodes/nuclear/nuclear_challenge.dm
index 48116911640..5e11a78888d 100644
--- a/code/game/gamemodes/nuclear/nuclear_challenge.dm
+++ b/code/game/gamemodes/nuclear/nuclear_challenge.dm
@@ -48,7 +48,7 @@
 	if(!check_allowed(user) || !war_declaration)
 		return
 
-	GLOB.event_announcement.Announce(war_declaration, "Declaration of War", 'sound/effects/siren.ogg')
+	GLOB.event_announcement.Announce(war_declaration, "Declaration of War", 'sound/effects/siren.ogg', msg_sanitized = TRUE)
 
 	to_chat(user, "You've attracted the attention of powerful forces within the syndicate. A bonus bundle of telecrystals has been granted to your team. Great things await you if you complete the mission.")
 	to_chat(user, "<b>Your bonus telecrystals have been split between your team's uplinks.</b>")