diff --git a/code/modules/atmospherics/gasmixtures/gas_mixture.dm b/code/modules/atmospherics/gasmixtures/gas_mixture.dm
index 45c7ae4f690..d65657a45b8 100644
--- a/code/modules/atmospherics/gasmixtures/gas_mixture.dm
+++ b/code/modules/atmospherics/gasmixtures/gas_mixture.dm
@@ -112,6 +112,7 @@ var/list/gaslist_cache = init_gaslist_cache()
 		var/cached_gases = gases
 		TOTAL_MOLES(cached_gases, .)
 		. *= R_IDEAL_GAS_EQUATION * temperature / volume
+		return
 	return 0
 
 /datum/gas_mixture/proc/return_temperature() //kelvins