diff --git a/514gap-buffer.mu b/514gap-buffer.mu
index 4acab54d..a5a7273e 100644
--- a/514gap-buffer.mu
+++ b/514gap-buffer.mu
@@ -49,7 +49,6 @@ fn gap-buffer-capacity _gap: (addr gap-buffer) -> _/edx: int {
   return result
 }
 
-# just for tests
 fn initialize-gap-buffer-with self: (addr gap-buffer), keys: (addr array byte) {
   initialize-gap-buffer self, 0x40/capacity
   var input-stream-storage: (stream byte 0x40/capacity)
diff --git a/shell/main.mu b/shell/main.mu
index 7e4bc32c..1f0e2de9 100644
--- a/shell/main.mu
+++ b/shell/main.mu
@@ -6,7 +6,7 @@ fn main screen: (addr screen), keyboard: (addr keyboard), data-disk: (addr disk)
   var env/esi: (addr environment) <- address env-storage
   initialize-environment env, 0x20/fake-screen-width, 8/fake-screen-height
   load-state env, data-disk
-  $main:loop: {
+  {
     render-environment screen, env
     # no way to quit right now; just reboot
     {