diff --git a/code/modules/organs/blood.dm b/code/modules/organs/blood.dm
index 87c32171255..4f45909788a 100644
--- a/code/modules/organs/blood.dm
+++ b/code/modules/organs/blood.dm
@@ -205,6 +205,7 @@
 	data["viruses"] = list()
 	for(var/datum/disease/D in diseases)
 		data["viruses"] += D.Copy()
+	data["resistances"] += disease_resistances.Copy()
 	data["blood_DNA"] = dna.unique_enzymes
 	data["blood_type"] = dna.b_type
 	data["species"] = species.name
diff --git a/code/modules/reagents/Chemistry-Reagents/Chemistry-Reagents-Core.dm b/code/modules/reagents/Chemistry-Reagents/Chemistry-Reagents-Core.dm
index aac7e262941..90158ad2ca5 100644
--- a/code/modules/reagents/Chemistry-Reagents/Chemistry-Reagents-Core.dm
+++ b/code/modules/reagents/Chemistry-Reagents/Chemistry-Reagents-Core.dm
@@ -2,6 +2,7 @@
 	data = new/list(
 		"donor" = null,
 		"viruses" = null,
+		"resistances"=null,
 		"species" = SPECIES_HUMAN,
 		"blood_DNA" = null,
 		"blood_type" = null,