diff --git a/code/modules/mob/living/carbon/monkey/monkey.dm b/code/modules/mob/living/carbon/monkey/monkey.dm
index 55ecebda8cc2..d481dc07f31d 100644
--- a/code/modules/mob/living/carbon/monkey/monkey.dm
+++ b/code/modules/mob/living/carbon/monkey/monkey.dm
@@ -80,8 +80,8 @@
 	. = ..()
 	var/slow = 0
 	if (bodytemperature < 283.222)
-		slow += (283.222 - bodytemperature) / 10 * 1.75
-	add_movespeed_modifier(MOVESPEED_ID_MONKEY_TEMPERATURE_SPEEDMOD, TRUE, 100, override = TRUE, multiplicative_slowdown = amount)
+		slow += ((283.222 - bodytemperature) / 10) * 1.75
+	add_movespeed_modifier(MOVESPEED_ID_MONKEY_TEMPERATURE_SPEEDMOD, TRUE, 100, override = TRUE, multiplicative_slowdown = slow)
 
 /mob/living/carbon/monkey/Stat()
 	..()
diff --git a/code/modules/mob/living/simple_animal/slime/slime.dm b/code/modules/mob/living/simple_animal/slime/slime.dm
index bba5e1aad2b3..634ebd1b355d 100644
--- a/code/modules/mob/living/simple_animal/slime/slime.dm
+++ b/code/modules/mob/living/simple_animal/slime/slime.dm
@@ -161,8 +161,8 @@
 	var/mod = 0
 	if(bodytemperature >= 330.23) // 135 F or 57.08 C
 		mod = -1	// slimes become supercharged at high temperatures
-	else if(bodytemperature < 183.222)
-		mod = (283.222 - bodytemperature) / 10 * 1.75
+	else if(bodytemperature < 283.222)
+		mod = ((283.222 - bodytemperature) / 10) * 1.75
 	if(mod)
 		add_movespeed_modifier(MOVESPEED_ID_SLIME_TEMPMOD, TRUE, 100, override = TRUE, multiplicative_slowdown = mod)