diff --git a/serde/src/lib.rs b/serde/src/lib.rs
index f1ee9413..b4207855 100644
--- a/serde/src/lib.rs
+++ b/serde/src/lib.rs
@@ -234,7 +234,6 @@ pub use serde_core::{
     de, forward_to_deserialize_any, ser, Deserialize, Deserializer, Serialize, Serializer,
 };
 
-#[macro_use]
 mod integer128;
 
 // Used by generated code and doc tests. Not public API.