diff --git a/src/main.rs b/src/main.rs
index 05a6658..7d15ec3 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -10,7 +10,7 @@ use certificate_resolver::CertificateResolver;
 fn main() -> Result<(), Box<dyn Error>> {
     env_logger::init();
 
-    let cert_resolver = Arc::new(CertificateResolver::new("./ed25519.crt".to_string(), Ed25519PrivKey::from(&[0,0,0,0,0,0,0,0])));
+    let cert_resolver = Arc::new(CertificateResolver::new(std::env::var("CERT").expect("CERT environment variable is missing"), Ed25519PrivKey::from(&[0,0,0,0,0,0,0,0])));
 
     let config = Arc::new(ServerConfig::builder()
         .with_no_client_auth()