diff --git a/code/datums/mutations/sight.dm b/code/datums/mutations/sight.dm
index 9beb1beb96c..2ae8ae9fc13 100644
--- a/code/datums/mutations/sight.dm
+++ b/code/datums/mutations/sight.dm
@@ -63,8 +63,7 @@
 		return
 
 	to_modify.eye_damage = 10 * GET_MUTATION_SYNCHRONIZER(src)
-	to_modify.thermal_duration = 10 * GET_MUTATION_POWER(src)
-
+	to_modify.thermal_duration = 10 SECONDS * GET_MUTATION_POWER(src)
 
 /datum/action/cooldown/spell/thermal_vision
 	name = "Activate Thermal Vision"