diff --git a/examples/lenna.ce b/examples/lenna.ce
index 40c9c75..dceccf3 100644
--- a/examples/lenna.ce
+++ b/examples/lenna.ce
@@ -33,13 +33,13 @@ log.console("Loading lenna.png...")
 var img_blob = io.slurp("lenna.png")
 if (!img_blob) {
   log.console("Error: Could not load lenna.png")
-  $_.stop()
+  $stop()
 }
 
 var img = png.decode(img_blob)
 if (!img) {
   log.console("Error: Could not decode lenna.png")
-  $_.stop()
+  $stop()
 }
 
 log.console("Image loaded: " + text(img.width) + "x" + text(img.height))
@@ -76,7 +76,7 @@ var last_time = time.number()
 function frame() {
   if (!running) {
     log.console("Exiting...")
-    $_.stop()
+    $stop()
     return
   }
 
@@ -120,7 +120,7 @@ function frame() {
   renderer.present()
 
   // Schedule next frame
-  $_.delay(frame, 1/60)
+  $delay(frame, 1/60)
 }
 
 log.console("Starting render loop... Press ESC to exit, WASD to move")