From e4b0879ab44b413cfe6bc1e676ec4a2d27e6f623 Mon Sep 17 00:00:00 2001
From: Nadyr <41974248+Darlantanis@users.noreply.github.com>
Date: Fri, 12 Mar 2021 00:35:16 -0500
Subject: [PATCH] Update Chemistry-Holder.dm

---
 code/modules/reagents/Chemistry-Holder.dm | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/code/modules/reagents/Chemistry-Holder.dm b/code/modules/reagents/Chemistry-Holder.dm
index 9f4cbc4488..797ffc4371 100644
--- a/code/modules/reagents/Chemistry-Holder.dm
+++ b/code/modules/reagents/Chemistry-Holder.dm
@@ -137,7 +137,7 @@
 	for(var/datum/reagent/current in reagent_list)
 		if(current.id == id)
 			if(current.id == "blood")
-				if(!isnull(data["species"]) && !isnull(current.data["species"]) && data["species"] != current.data["species"])	// Species bloodtypes are already incompatible, this just stops it from mixing into the one already in a container.
+				if(LAZYLEN(data) && !isnull(data["species"]) && !isnull(current.data["species"]) && data["species"] != current.data["species"])	// Species bloodtypes are already incompatible, this just stops it from mixing into the one already in a container.
 					continue
 
 			current.volume += amount