diff --git a/magnitest.p8 b/magnitest.p8
index 6b3b7fc..f7cbbf6 100644
--- a/magnitest.p8
+++ b/magnitest.p8
@@ -46,7 +46,7 @@ function _update60()
  if (btn(3)) gdy += acc
  if (btn(4) and btn(5)) gdx,gdy=0,0
 
- if btn == 0 or btn(4) then
+ if btn() == 0 or btn(4) then
   acc = 1
  elseif btn(5) then
   acc *= 1.1