diff --git a/src/error.rs b/src/error.rs
index c7d3082..722a62b 100644
--- a/src/error.rs
+++ b/src/error.rs
@@ -1,7 +1,9 @@
+use std::env;
+use std::fmt::{Display, Formatter, Result};
 use std::path::Path;
 
 pub fn print_error(message: &str) {
-    let name = std::env::args().next().unwrap();
+    let name = env::args().next().unwrap_or(String::from("rash"));
     let name = Path::new(&name).file_name().unwrap().to_str().unwrap();
 
     eprintln!("{}: {}", name, message);