diff --git a/tts_service/src/main.rs b/tts_service/src/main.rs
index 83145795c0..2104923312 100644
--- a/tts_service/src/main.rs
+++ b/tts_service/src/main.rs
@@ -42,19 +42,19 @@ use crate::model::model_cache::ModelCache;
 use crate::database::connector::DatabaseConnector;
 use crate::endpoints::sentences::get_sentences;
 
-const BIND_ADDRESS : &'static str = "BIND_ADDRESS";
-const ASSET_DIRECTORY : &'static str = "ASSET_DIRECTORY";
-const MODEL_CONFIG_FILE : &'static str = "MODEL_CONFIG_FILE";
+const ENV_ASSET_DIRECTORY: &'static str = "ASSET_DIRECTORY";
+const ENV_BIND_ADDRESS: &'static str = "BIND_ADDRESS";
 const ENV_DATABASE_URL : &'static str = "DATABASE_URL";
-const ENV_NUMBER_WORKERS : &'static str = "NUM_WORKERS";
+const ENV_MODEL_CONFIG_FILE: &'static str = "MODEL_CONFIG_FILE";
+const ENV_NUM_WORKERS: &'static str = "NUM_WORKERS";
 const ENV_RUST_LOG : &'static str = "RUST_LOG";
 
-const DEFAULT_BIND_ADDRESS : &'static str = "0.0.0.0:12345";
 const DEFAULT_ASSET_DIRECTORY : &'static str = "/home/bt/dev/voder/tts_frontend/build";
-const DEFAULT_MODEL_CONFIG_FILE: &'static str = "models.toml";
-const DEFAULT_RUST_LOG: &'static str = "debug,actix_web=info";
-const DEFAULT_NUM_WORKERS : usize = 4;
+const DEFAULT_BIND_ADDRESS : &'static str = "0.0.0.0:12345";
 const DEFAULT_DATABASE_URL : &'static str = "mysql://root:root@localhost/mumble";
+const DEFAULT_MODEL_CONFIG_FILE: &'static str = "models.toml";
+const DEFAULT_NUM_WORKERS : usize = 4;
+const DEFAULT_RUST_LOG: &'static str = "debug,actix_web=info";
 
 /** State that is easy to pass between handlers. */
 pub struct AppState {
@@ -112,10 +112,10 @@ pub fn main() -> AnyhowResult<()> {
 
   env_logger::init();
 
-  let bind_address = get_env_string(BIND_ADDRESS, DEFAULT_BIND_ADDRESS);
-  let asset_directory = get_env_string(ASSET_DIRECTORY, DEFAULT_ASSET_DIRECTORY);
-  let model_config_file = get_env_string(MODEL_CONFIG_FILE, DEFAULT_MODEL_CONFIG_FILE);
-  let num_workers = get_env_num::<usize>(ENV_NUMBER_WORKERS, DEFAULT_NUM_WORKERS)?;
+  let bind_address = get_env_string(ENV_BIND_ADDRESS, DEFAULT_BIND_ADDRESS);
+  let asset_directory = get_env_string(ENV_ASSET_DIRECTORY, DEFAULT_ASSET_DIRECTORY);
+  let model_config_file = get_env_string(ENV_MODEL_CONFIG_FILE, DEFAULT_MODEL_CONFIG_FILE);
+  let num_workers = get_env_num::<usize>(ENV_NUM_WORKERS, DEFAULT_NUM_WORKERS)?;
   let database_url = get_env_string(ENV_DATABASE_URL, DEFAULT_DATABASE_URL);
 
   info!("Asset directory: {}", asset_directory);