diff --git a/actix-web-codegen/src/lib.rs b/actix-web-codegen/src/lib.rs
index 1c20bbc95..2237f422c 100644
--- a/actix-web-codegen/src/lib.rs
+++ b/actix-web-codegen/src/lib.rs
@@ -173,7 +173,7 @@ pub fn main(_: TokenStream, item: TokenStream) -> TokenStream {
     use quote::quote;
     let input = syn::parse_macro_input!(item as syn::ItemFn);
     (quote! {
-        #[actix_web::rt::main]
+        #[actix_web::rt::main(system = "::actix_web::rt::System")]
         #input
     })
     .into()