diff --git a/src/main.rs b/src/main.rs
index 9f14765..8bedf52 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -22,6 +22,6 @@ fn main() {
       },
     }
   } else {
-    println!("No argument supplied");
+    eprintln!("No argument supplied");
   }
 }