diff --git a/code/modules/mob/living/carbon/human/human_movement.dm b/code/modules/mob/living/carbon/human/human_movement.dm
index 1497c85559..8ece68a364 100644
--- a/code/modules/mob/living/carbon/human/human_movement.dm
+++ b/code/modules/mob/living/carbon/human/human_movement.dm
@@ -209,7 +209,7 @@
 		var/turf_move_cost = T.movement_cost
 		if(istype(T, /turf/simulated/floor/water))
 			if(species.water_movement)
-				turf_move_cost = 0
+				turf_move_cost = CLAMP(turf_move_cost + species.water_movement, HUMAN_LOWEST_SLOWDOWN, 15)
 			if(istype(shoes, /obj/item/clothing/shoes))
 				var/obj/item/clothing/shoes/feet = shoes
 				if(istype(feet) && feet.water_speed)