diff --git a/code/modules/mob/living/basic/ruin_defender/flesh.dm b/code/modules/mob/living/basic/ruin_defender/flesh.dm
index 38e56f84c84..e33cdcad1a1 100644
--- a/code/modules/mob/living/basic/ruin_defender/flesh.dm
+++ b/code/modules/mob/living/basic/ruin_defender/flesh.dm
@@ -49,12 +49,12 @@
 	if(isnull(current_bodypart) || isnull(current_bodypart.owner))
 		return
 	var/mob/living/carbon/human/victim = current_bodypart.owner
-	if(prob(SPT_PROB(3, SSMOBS_DT)))
+	if(SPT_PROB(3, SSMOBS_DT))
 		to_chat(victim, span_warning("The thing posing as your limb makes you feel funny...")) //warn em
 	//firstly as a sideeffect we drain nutrition from our host
 	victim.adjust_nutrition(-1.5)
 
-	if(!prob(SPT_PROB(1.5, SSMOBS_DT)))
+	if(!SPT_PROB(1.5, SSMOBS_DT))
 		return
 
 	if(istype(current_bodypart, /obj/item/bodypart/arm))