diff --git a/code/modules/reagents/chemistry/recipes/slime_extracts.dm b/code/modules/reagents/chemistry/recipes/slime_extracts.dm
index 4539a54ecb8..89c88a5cf60 100644
--- a/code/modules/reagents/chemistry/recipes/slime_extracts.dm
+++ b/code/modules/reagents/chemistry/recipes/slime_extracts.dm
@@ -175,7 +175,8 @@
 		/obj/item/food/human,
 		/obj/item/food/monstermeat,
 		/obj/item/food/meatsteak/stimulating,
-		/obj/item/food/egg/watcher
+		/obj/item/food/egg/watcher,
+		/obj/item/food/supermatter_sandwich,
 		)
 	blocked |= typesof(/obj/item/food/customizable)