diff --git a/tonic-types/src/lib.rs b/tonic-types/src/lib.rs
index 49758f9..a60df45 100644
--- a/tonic-types/src/lib.rs
+++ b/tonic-types/src/lib.rs
@@ -52,6 +52,5 @@ pub use richer_error::{
 };
 
 mod sealed {
-    #[allow(unreachable_pub)]
     pub trait Sealed {}
 }