diff --git a/code/modules/mob/living/carbon/human/species.dm b/code/modules/mob/living/carbon/human/species.dm
index 7318e3ec06a..275549ba751 100644
--- a/code/modules/mob/living/carbon/human/species.dm
+++ b/code/modules/mob/living/carbon/human/species.dm
@@ -1894,7 +1894,7 @@ GLOBAL_LIST_EMPTY(roundstart_races)
 		if(H.bodytemperature < BODYTEMP_NORMAL) //we're cold, insulation helps us retain body heat and will reduce the heat we lose to the environment
 			H.adjust_bodytemperature((thermal_protection+1)*natural + max(thermal_protection * (loc_temp - H.bodytemperature) / BODYTEMP_COLD_DIVISOR, BODYTEMP_COOLING_MAX))
 		else //we're sweating, insulation hinders our ability to reduce heat - and it will reduce the amount of cooling you get from the environment
-			H.adjust_bodytemperature(natural*(1/(thermal_protection+1)) + max((thermal_protection * (loc_temp - H.bodytemperature) + BODYTEMP_NORMAL - H.bodytemperature) / BODYTEMP_COLD_DIVISOR , BODYTEMP_COOLING_MAX)) //Extra calculation for hardsuits to bleed off heat
+			H.adjust_bodytemperature(natural*(1/(thermal_protection+1)) + max((thermal_protection * (loc_temp - H.bodytemperature)) / BODYTEMP_COLD_DIVISOR , BODYTEMP_COOLING_MAX)) //NSV13 - you don't first say insulation reduces cooling, then bypass insulation entirely.
 	else if(loc_temp > H.bodytemperature) //Place is hotter than we are
 		var/thermal_protection = 1
 		thermal_protection -= H.get_heat_protection(loc_temp) //This returns a 0 - 1 value, which corresponds to the percentage of protection based on what you're wearing and what you're exposed to.