diff --git a/code/modules/mob/living/simple_animal/hostile/regalrat.dm b/code/modules/mob/living/simple_animal/hostile/regalrat.dm
index e21514b37e..77b2d4268a 100644
--- a/code/modules/mob/living/simple_animal/hostile/regalrat.dm
+++ b/code/modules/mob/living/simple_animal/hostile/regalrat.dm
@@ -184,6 +184,7 @@
 /mob/living/simple_animal/hostile/rat/Initialize()
 	. = ..()
 	SSmobs.cheeserats += src
+	AddComponent(/datum/component/swarming)
 
 /mob/living/simple_animal/hostile/rat/Destroy()
 	SSmobs.cheeserats -= src