diff --git a/code/modules/movespeed/_movespeed_modifier.dm b/code/modules/movespeed/_movespeed_modifier.dm
index 3f2969b582..54991af932 100644
--- a/code/modules/movespeed/_movespeed_modifier.dm
+++ b/code/modules/movespeed/_movespeed_modifier.dm
@@ -67,7 +67,7 @@ Key procs
 		return existing + multiplicative_slowdown
 	var/current_tiles = 10 / max(existing, world.tick_lag)
 	// multiplicative_slowdown is negative due to our first check
-	var/max_buff_to = max(existing + multiplicative_slowdown, 10 / absolute_max_tiles_per_second, 10 / (current_tiles + max_tiles_per_second_boos))
+	var/max_buff_to = max(existing + multiplicative_slowdown, 10 / absolute_max_tiles_per_second, 10 / (current_tiles + max_tiles_per_second_boost))
 	// never slow the user
 	return min(existing, max_buff_to)