diff --git a/code/modules/organs/blood.dm b/code/modules/organs/blood.dm
index cee9a7d9273..7758c12724e 100644
--- a/code/modules/organs/blood.dm
+++ b/code/modules/organs/blood.dm
@@ -223,7 +223,7 @@ var/const/BLOOD_VOLUME_SURVIVE = 122
 
 	if (!injected || !our)
 		return
-	if(blood_incompatible(injected.data["blood_type"],our.data["blood_type"],injected.data["species"],our.data["species"]) )
+	if(blood_incompatible(injected.data["blood_type"],our.data["blood_type"],injected.data["species"],our.data["species"]) && !(mind.vampire))
 		reagents.add_reagent("toxin",amount * 0.5)
 		reagents.update_total()
 	else