diff --git a/compiler/__main__.py b/compiler/__main__.py
index 8607a2c..2c8739b 100644
--- a/compiler/__main__.py
+++ b/compiler/__main__.py
@@ -30,6 +30,7 @@ def main():
                 let a: uint32 = byte;
             }
             { let b: uint32; }
+            display(byte, 3) + 1;
             """
     if not args.mock:
         data = sys.stdin.read().strip()