diff --git a/src/body/to_bytes.rs b/src/body/to_bytes.rs
index 198e0c86..c3c48d34 100644
--- a/src/body/to_bytes.rs
+++ b/src/body/to_bytes.rs
@@ -17,6 +17,7 @@ use super::HttpBody;
 /// # Example
 ///
 /// ```
+/// # #[cfg(all(feature = "client", any(feature = "http1", feature = "http2")))]
 /// # async fn doc() -> hyper::Result<()> {
 /// use hyper::{body::HttpBody};
 ///