diff --git a/code/game/antagonist/antagonist.dm b/code/game/antagonist/antagonist.dm
index deab6f15f6f..3d9b429846b 100644
--- a/code/game/antagonist/antagonist.dm
+++ b/code/game/antagonist/antagonist.dm
@@ -4,7 +4,7 @@
 	var/list/restricted_jobs = 		list()   // Jobs that cannot be this antagonist at roundstart (depending on config)
 	var/list/protected_jobs = 		list()   // As above.
 	var/list/blacklisted_jobs =		list(/datum/job/submap)   // Jobs that can NEVER be this antagonist
-	var/list/blacklisted_species =   list(SPECIES_ADHERENT, SPECIES_DIONA, SPECIES_NABBER)
+	var/list/blacklisted_species =   list(SPECIES_ADHERENT, SPECIES_DIONA, SPECIES_NABBER, SPECIES_PROMETHEAN)
 
 	// Strings.
 	var/welcome_text = "Cry havoc and let slip the dogs of war!"