diff --git a/nl/nl.rs b/nl/nl.rs
index 9f2bf4b1b..00eeb1604 100644
--- a/nl/nl.rs
+++ b/nl/nl.rs
@@ -75,6 +75,7 @@ enum NumberFormat {
     RightZero,
 }
 
+#[allow(dead_code)]
 fn main () {
   os::set_exit_status(uumain(os::args()));
 }