diff --git a/code/modules/mob/transform_procs.dm b/code/modules/mob/transform_procs.dm
index ff624a0bae8..d1c60d9bb62 100644
--- a/code/modules/mob/transform_procs.dm
+++ b/code/modules/mob/transform_procs.dm
@@ -29,7 +29,7 @@
 	dna = null
 	O.dna.uni_identity = "00600200A00E0110148FC01300B009"
 	//O.dna.struc_enzymes = "0983E840344C39F4B059D5145FC5785DC6406A4BB8"
-	O.dna.struc_enzymes = "[copytext(O.dna.struc_enzymes,1,1+3*13)]BB8"
+	O.dna.struc_enzymes = "[copytext(O.dna.struc_enzymes,1,1+3*(STRUCDNASIZE-1))]BB8"
 	O.loc = loc
 	O.viruses = viruses
 	viruses = list()