diff --git a/serde/src/private/mod.rs b/serde/src/private/mod.rs
index 702e981e..27f9d0ed 100644
--- a/serde/src/private/mod.rs
+++ b/serde/src/private/mod.rs
@@ -1,7 +1,9 @@
 pub mod de;
-pub mod doc;
 pub mod ser;
 
+// FIXME: #[cfg(doctest)] once https://github.com/rust-lang/rust/issues/67295 is fixed.
+pub mod doc;
+
 pub use lib::clone::Clone;
 pub use lib::convert::{From, Into};
 pub use lib::default::Default;