diff --git a/code/FEA/FEA_turf_tile.dm b/code/FEA/FEA_turf_tile.dm
index 6c832f5acd..eca8211086 100644
--- a/code/FEA/FEA_turf_tile.dm
+++ b/code/FEA/FEA_turf_tile.dm
@@ -551,7 +551,7 @@ turf
 
 		proc/share_temperature_mutual_solid(turf/simulated/sharer, conduction_coefficient)
 			var/delta_temperature = (temperature_archived - sharer.temperature_archived)
-			if(abs(delta_temperature) > MINIMUM_TEMPERATURE_DELTA_TO_CONSIDER)
+			if(abs(delta_temperature) > MINIMUM_TEMPERATURE_DELTA_TO_CONSIDER && heat_capacity && sharer.heat_capacity)
 
 				var/heat = conduction_coefficient*delta_temperature* \
 					(heat_capacity*sharer.heat_capacity/(heat_capacity+sharer.heat_capacity))