diff --git a/code/game/objects/radiation.dm b/code/game/objects/radiation.dm
index 4e763a7b5f..bda292ca62 100644
--- a/code/game/objects/radiation.dm
+++ b/code/game/objects/radiation.dm
@@ -54,3 +54,6 @@
 
 /mob/living/simple_animal/drone/rad_act(amount)
 	. = ..(amount, TRUE)
+
+/mob/living/simple_animal/hostile/swarmer/rad_act(amount)
+	. = ..(amount, TRUE)