diff --git a/code/WorkInProgress/Chemistry-Reagents.dm b/code/WorkInProgress/Chemistry-Reagents.dm
index 6c3dba2de8f..a63f7ee5a90 100644
--- a/code/WorkInProgress/Chemistry-Reagents.dm
+++ b/code/WorkInProgress/Chemistry-Reagents.dm
@@ -590,7 +590,7 @@ datum
 						randmutb(M)
 					else
 						randmutg(M)
-					domutcheck(M, null, 1)
+					domutcheck(M, null)
 					updateappearance(M,M.dna.uni_identity)
 				return
 			on_mob_life(var/mob/M)