diff --git a/README.md b/README.md
index 7ee54e1..e658073 100644
--- a/README.md
+++ b/README.md
@@ -59,7 +59,7 @@ cargo build --release
 - Run the compilation
 
 ```
-cargo run
+cargo run --release
 ```
 
 The compiled circuit and circuit report can be found in the `./output` directory.
diff --git a/src/main.rs b/src/main.rs
index f89662a..2728944 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -3,7 +3,7 @@ use circom_2_arithc::{
     program::{build_circuit, ProgramError},
 };
 use dotenv::dotenv;
-use env_logger::init_from_env;
+use env_logger::{init_from_env, Env};
 use serde_json::to_string;
 use std::{
     fs::{self, File},
@@ -12,8 +12,8 @@ use std::{
 };
 
 fn main() -> Result<(), ProgramError> {
-    dotenv().expect("Failed to initialize environment");
-    init_from_env("LOG_LEVEL=info");
+    dotenv().ok();
+    init_from_env(Env::default().filter_or("LOG_LEVEL", "info"));
 
     let output_path = PathBuf::from(view().value_of("output").unwrap());