diff --git a/code/modules/events/spontaneous_appendicitis.dm b/code/modules/events/spontaneous_appendicitis.dm
index 81cd999b64e..4e5f129e38a 100644
--- a/code/modules/events/spontaneous_appendicitis.dm
+++ b/code/modules/events/spontaneous_appendicitis.dm
@@ -17,6 +17,8 @@
 			continue
 		if(!H.getorgan(/obj/item/organ/appendix)) //Don't give the disease to some who lacks it, only for it to be auto-cured
 			continue
+		if(!(MOB_ORGANIC in H.mob_biotypes)) //biotype sleeper bugs strike again, once again making appendicitis pick a target that can't take it
+			continue
 		var/foundAlready = FALSE	//don't infect someone that already has appendicitis
 		for(var/datum/disease/appendicitis/A in H.diseases)
 			foundAlready = TRUE
@@ -27,4 +29,4 @@
 		var/datum/disease/D = new /datum/disease/appendicitis()
 		H.ForceContractDisease(D, FALSE, TRUE)
 		announce_to_ghosts(H)
-		break
\ No newline at end of file
+		break