diff --git a/init.lua b/init.lua
index 4c34933..8325ef3 100644
--- a/init.lua
+++ b/init.lua
@@ -11,8 +11,10 @@ minetest.register_globalstep(function(dtime)
 			local privs = minetest.get_player_privs(name)
 			local old_breath  = player:get_attribute("old_breath") or 11
 			local sprint_time = player:get_attribute("sprint_time") or 0
+			local controls = player:get_player_control()
 			
-			if player:get_player_control()["aux1"] and player:get_player_control()["up"] and privs.fast then
+			if controls["aux1"] and 
+					( controls["up"] or controls["down"] or controls["left"] or controls["right"] ) and privs.fast then
 				sprint_time = sprint_time + timer
 
 				breath = old_breath - ( sprint_time * (11 / sprint_length) )