diff --git a/code/datums/dna.dm b/code/datums/dna.dm
index 3dfaadb4626..b4c4a23d769 100644
--- a/code/datums/dna.dm
+++ b/code/datums/dna.dm
@@ -172,7 +172,7 @@ GLOBAL_LIST_INIT(total_uf_len_by_block, populate_total_uf_len_by_block())
 	var/list/sources_to_add = sources.Copy() //make sure not to modify the original if it's stored in a variable outside this proc
 	if(!actual_mutation)
 		if(istype(mutation_to_add, /datum/mutation))
-			var/datum/mutation/mutation_instance
+			var/datum/mutation/mutation_instance = mutation_to_add
 			actual_mutation = mutation_instance.make_copy()
 		else
 			actual_mutation = new mutation_to_add
@@ -229,7 +229,7 @@ GLOBAL_LIST_INIT(total_uf_len_by_block, populate_total_uf_len_by_block())
 /datum/dna/proc/remove_mutation_group(list/group, sources = GLOB.standard_mutation_sources)
 	if(!group)
 		return
-	for(var/datum/mutation/mutation in group)
+	for(var/mutation in group)
 		remove_mutation(mutation, sources)
 
 /datum/dna/proc/generate_unique_identity()
diff --git a/code/modules/reagents/chemistry/reagents/medicine_reagents.dm b/code/modules/reagents/chemistry/reagents/medicine_reagents.dm
index c2ce97d46a4..2ab1b8fb0b3 100644
--- a/code/modules/reagents/chemistry/reagents/medicine_reagents.dm
+++ b/code/modules/reagents/chemistry/reagents/medicine_reagents.dm
@@ -1188,7 +1188,7 @@
 	. = ..()
 	affected_mob.remove_status_effect(/datum/status_effect/jitter)
 	if(affected_mob.has_dna())
-		affected_mob.dna.remove_mutation_group(affected_mob.dna.mutations - /datum/mutation/race, GLOB.standard_mutation_sources)
+		affected_mob.dna.remove_mutation_group(affected_mob.dna.mutations - affected_mob.dna.get_mutation(/datum/mutation/race), GLOB.standard_mutation_sources)
 		affected_mob.dna.scrambled = FALSE
 
 /datum/reagent/medicine/antihol