diff --git a/crates/macro/src/lib.rs b/crates/macro/src/lib.rs
index d8b2ae3..378f291 100644
--- a/crates/macro/src/lib.rs
+++ b/crates/macro/src/lib.rs
@@ -324,8 +324,6 @@ fn generate_code(
     quote! {
         use rust_i18n::{BackendExt, CowStr, MinifyKey};
         use std::borrow::Cow;
-        use std::sync::Mutex;
-        use rust_i18n::once_cell::sync::Lazy;
 
         /// I18n backend instance
         ///
@@ -335,18 +333,11 @@ fn generate_code(
             let mut backend = rust_i18n::SimpleBackend::new();
             #(#all_translations)*
             #extend_code
-
-            if *_RUST_I18N_INITIALIZED_DEFAULT_LOCALE.lock().unwrap() == false {
-                *_RUST_I18N_INITIALIZED_DEFAULT_LOCALE.lock().unwrap() = true;
-                #default_locale
-            }
+            #default_locale
 
             Box::new(backend)
         });
 
-        /// To mark the default locale has been initialized
-        static _RUST_I18N_INITIALIZED_DEFAULT_LOCALE: Lazy<Mutex<bool>> = Lazy::new(|| Mutex::new(false));
-
         static _RUST_I18N_FALLBACK_LOCALE: Option<&[&'static str]> = #fallback;
         static _RUST_I18N_MINIFY_KEY: bool = #minify_key;
         static _RUST_I18N_MINIFY_KEY_LEN: usize = #minify_key_len;