diff --git a/bip0039/Cargo.toml b/bip0039/Cargo.toml
index 855cde7..43e8956 100644
--- a/bip0039/Cargo.toml
+++ b/bip0039/Cargo.toml
@@ -17,10 +17,10 @@ exclude = ["words"]
 
 # docs.rs-specific configuration
 [package.metadata.docs.rs]
-# RUSTDOCFLAGS="--cfg doc_cfg"
+# RUSTDOCFLAGS="--cfg docsrs"
 # To build locally: cargo +nightly doc --all-features --no-deps --open
 all-features = true
-rustdoc-args = ["--cfg", "doc_cfg"]
+rustdoc-args = ["--cfg", "docsrs"]
 
 [features]
 default = ["std", "rand"]
diff --git a/bip0039/src/lib.rs b/bip0039/src/lib.rs
index 9218449..d7d8ae9 100644
--- a/bip0039/src/lib.rs
+++ b/bip0039/src/lib.rs
@@ -32,7 +32,7 @@ println!("phrase: {}", mnemonic.phrase());
 #![deny(unused_imports)]
 #![deny(missing_docs)]
 #![cfg_attr(not(feature = "std"), no_std)]
-#![cfg_attr(doc_cfg, feature(doc_cfg))]
+#![cfg_attr(docsrs, feature(doc_auto_cfg))]
 
 #[cfg(not(feature = "std"))]
 extern crate alloc;