diff --git a/src/device_var.rs b/src/device_var.rs
index a34d993..d1e5ff1 100644
--- a/src/device_var.rs
+++ b/src/device_var.rs
@@ -9,11 +9,12 @@ pub fn read_env_var() {
     let mut path = env::var("PWD").unwrap().to_string();
     path.push('/');
     path.push_str(filename);
+    println!("{}", path);
 
-    fs::read_to_string(path)
+    fs::read_to_string(path.clone())
         .expect("Something went wrong reading the file : device.env");
 
-    if let Ok(lines) = read_lines(filename) {
+    if let Ok(lines) = read_lines(path) {
         for line in lines {
             if let Ok(var) = line {
                 let new_var: Vec<&str> = var.split('=').collect();
@@ -33,4 +34,4 @@ fn read_lines<P>(filename: P) -> io::Result<io::Lines<io::BufReader<File>>>
 where P: AsRef<Path>, {
     let file = File::open(filename)?;
     Ok(io::BufReader::new(file).lines())
-}
\ No newline at end of file
+}