diff --git a/code/modules/atmospherics/machinery/components/unary_devices/cryo.dm b/code/modules/atmospherics/machinery/components/unary_devices/cryo.dm
index 69b15ef1f4..277608d845 100644
--- a/code/modules/atmospherics/machinery/components/unary_devices/cryo.dm
+++ b/code/modules/atmospherics/machinery/components/unary_devices/cryo.dm
@@ -217,7 +217,9 @@
 
 		if(abs(temperature_delta) > 1)
 			var/air_heat_capacity = air1.heat_capacity()
-			var/heat = ((1 - cold_protection) * 0.1 + conduction_coefficient) * temperature_delta * (1 / air_heat_capacity + 1 / heat_capacity)
+
+			var/heat = ((1 - cold_protection) * 0.1 + conduction_coefficient) * temperature_delta * (air_heat_capacity * heat_capacity / (air_heat_capacity + heat_capacity))
+
 			air1.temperature = max(air1.temperature - heat / air_heat_capacity, TCMB)
 			mob_occupant.bodytemperature = max(mob_occupant.bodytemperature + heat / heat_capacity, TCMB)