diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 19c60de8..16098abc 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -58,7 +58,7 @@ jobs:
       - name: cargo doc (all features)
         run: cargo doc --all --all-features --document-private-items
         env:
-          RUSTDOCFLAGS: '-Dwarnings'
+          RUSTDOCFLAGS: ${{ matrix.rust_channel == 'nightly' && '-Dwarnings --cfg=docsrs' || '-Dwarnings' }}
 
   build-windows:
     runs-on: windows-latest
diff --git a/src/lib.rs b/src/lib.rs
index f3970836..76a3e22a 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -29,6 +29,7 @@ println!("{}", cert.serialize_private_key_pem());
 #![forbid(non_ascii_idents)]
 #![deny(missing_docs)]
 #![allow(clippy::complexity, clippy::style, clippy::pedantic)]
+#![cfg_attr(docsrs, feature(doc_cfg, doc_auto_cfg))]
 
 #[cfg(feature = "pem")]
 use pem::Pem;