diff --git a/code/modules/research/circuitprinter.dm b/code/modules/research/circuitprinter.dm
index 936330d00a..dae6575577 100644
--- a/code/modules/research/circuitprinter.dm
+++ b/code/modules/research/circuitprinter.dm
@@ -93,7 +93,7 @@ using metal and glass, it uses glass and reagents (usually sulphuric acid).
 		if(materials[f] >= SHEET_MATERIAL_AMOUNT)
 			var/path = getMaterialType(f)
 			if(path)
-				var/obj/item/stack/S = new f(loc)
+				var/obj/item/stack/S = new path(loc)
 				S.amount = round(materials[f] / SHEET_MATERIAL_AMOUNT)
 	..()