diff --git a/code/game/machinery/rechargestation.dm b/code/game/machinery/rechargestation.dm
index c80c861bdb3..085fc9a9aa1 100644
--- a/code/game/machinery/rechargestation.dm
+++ b/code/game/machinery/rechargestation.dm
@@ -193,7 +193,7 @@
 					if(istype(O,/obj/item/stack/sheet))
 						var/obj/item/stack/sheet/S = O
 						if(S.amount < S.max_amount)
-							S.amount += round(min(1 * coeff, S.max_amount))
+							S.amount += round(min(1 * coeff, S.max_amount - S.amount))
 					// Security
 					if(istype(O,/obj/item/device/flash))
 						var/obj/item/device/flash/F = O