diff --git a/chameleonic.p8 b/chameleonic.p8
index 7f9102b..cdeca25 100644
--- a/chameleonic.p8
+++ b/chameleonic.p8
@@ -1088,7 +1088,7 @@ function rope:draw(artificial_px,artificial_py)
    if (anch.ady>0) y-=1
   end
   rectfill(x-1,y-1,x+1,y+1,12)
-  print("ax="..n1.ax..",ay="..n1.ay,72,sy)
+  print(fmt("ax=%v,ay=%v",n1.ax,n1.ay),72,sy)
   sy+=7
 
   local n0=n1.prev