diff --git a/code/datums/mutations/_combined.dm b/code/datums/mutations/_combined.dm
index 1e6aa90dbe..a0776532b4 100644
--- a/code/datums/mutations/_combined.dm
+++ b/code/datums/mutations/_combined.dm
@@ -17,10 +17,6 @@
 	required = "/datum/mutation/human/strong; /datum/mutation/human/radioactive"
 	result = HULK
 
-/datum/generecipe/x_ray
-	required = "/datum/mutation/human/thermal; /datum/mutation/human/radioactive"
-	result = /datum/mutation/human/thermal/x_ray
-
 /datum/generecipe/mindread
 	required = "/datum/mutation/human/antenna; /datum/mutation/human/paranoia"
 	result = MINDREAD