diff --git a/src/device_var.rs b/src/device_var.rs
index b9a3451..a34d993 100644
--- a/src/device_var.rs
+++ b/src/device_var.rs
@@ -6,25 +6,23 @@ use std::path::Path;
 
 pub fn read_env_var() {
     let filename = "device.env";
-    // println!("In file {}", filename);
+    let mut path = env::var("PWD").unwrap().to_string();
+    path.push('/');
+    path.push_str(filename);
 
-    fs::read_to_string(filename)
+    fs::read_to_string(path)
         .expect("Something went wrong reading the file : device.env");
 
-
     if let Ok(lines) = read_lines(filename) {
-        // Consumes the iterator, returns an (Optional) String
         for line in lines {
             if let Ok(var) = line {
                 let new_var: Vec<&str> = var.split('=').collect();
                 env::set_var(new_var[0], new_var[1]);
-                // println!("Ma ligne : {:?}", new_var);
             }
         }
     }
 
     // println!("\n");
-
     // for (key, value) in env::vars() {
     //     println!("{}: {}", key, value);
     // }