diff --git a/entities/plane.lua b/entities/plane.lua
index 51ae594..68fffd6 100644
--- a/entities/plane.lua
+++ b/entities/plane.lua
@@ -464,9 +464,8 @@ Plane = Class{
         self.turningCcw = isTurning
     end;
 
-    analog = function(self, controlX, controlY, throttleX, throttleY, fire, brake)
+    analog = function(self, controlY, throttleX, throttleY, fire, brake)
         if self.health > 0 then
-	    self.controlX = controlX
 	    self.controlY = controlY
 	    self.throttleX = throttleX
 	    self.throttleY = -throttleY
diff --git a/level_state.lua b/level_state.lua
index a3498ee..dd936fe 100644
--- a/level_state.lua
+++ b/level_state.lua
@@ -116,7 +116,7 @@ function level_state:update(dt)
 	    local x1, y1, x2, y2 = j:getAxes()
 	    if #buttons >= 8 and y2 ~= nil then
 		-- button mapping suitable for XBox original controller
-		players[player]:joystick(x2, y2, x1, y1, buttons[8], buttons[7])
+		players[player]:joystick(y2 - x2, x1, y1, buttons[8], buttons[7])
 	    end
 	end
     end