diff --git a/code/game/machinery/atmoalter/canister.dm b/code/game/machinery/atmoalter/canister.dm
index f2a73a52e0f..94e65bbe067 100644
--- a/code/game/machinery/atmoalter/canister.dm
+++ b/code/game/machinery/atmoalter/canister.dm
@@ -15,6 +15,7 @@
 	pressure_resistance = 7*ONE_ATMOSPHERE
 	var/temperature_resistance = 1000 + T0C
 	volume = 1000
+	power_usage = 0
 
 /obj/machinery/portable_atmospherics/canister/sleeping_agent
 	name = "Canister: \[N2O\]"