diff --git a/protocols/autonat/CHANGELOG.md b/protocols/autonat/CHANGELOG.md
index 1ed17892..545e988a 100644
--- a/protocols/autonat/CHANGELOG.md
+++ b/protocols/autonat/CHANGELOG.md
@@ -1,3 +1,7 @@
+# 0.4.1
+
+- Export `DEFAULT_PROTOCOL_NAME`.
+
 # 0.4.0
 
 - Update to `libp2p-core` `v0.33.0`.
diff --git a/protocols/autonat/Cargo.toml b/protocols/autonat/Cargo.toml
index cb5866b0..0c142d01 100644
--- a/protocols/autonat/Cargo.toml
+++ b/protocols/autonat/Cargo.toml
@@ -3,7 +3,7 @@ name = "libp2p-autonat"
 edition = "2021"
 rust-version = "1.56.1"
 description = "NAT and firewall detection for libp2p"
-version = "0.4.0"
+version = "0.4.1"
 authors = ["David Craven <david@craven.ch>", "Elena Frank <elena.frank@protonmail.com>"]
 license = "MIT"
 repository = "https://github.com/libp2p/rust-libp2p"
diff --git a/protocols/autonat/src/lib.rs b/protocols/autonat/src/lib.rs
index d55ab3ac..3a1bf63c 100644
--- a/protocols/autonat/src/lib.rs
+++ b/protocols/autonat/src/lib.rs
@@ -27,7 +27,7 @@ pub use self::{
         Behaviour, Config, Event, InboundProbeError, InboundProbeEvent, NatStatus,
         OutboundProbeError, OutboundProbeEvent, ProbeId,
     },
-    protocol::ResponseError,
+    protocol::{ResponseError, DEFAULT_PROTOCOL_NAME},
 };
 pub use libp2p_request_response::{InboundFailure, OutboundFailure};
 
diff --git a/protocols/autonat/src/protocol.rs b/protocols/autonat/src/protocol.rs
index 13647a4f..f39c22aa 100644
--- a/protocols/autonat/src/protocol.rs
+++ b/protocols/autonat/src/protocol.rs
@@ -29,9 +29,12 @@ use std::{convert::TryFrom, io};
 #[derive(Clone, Debug)]
 pub struct AutoNatProtocol;
 
+/// The protocol name used for negotiating with multistream-select.
+pub const DEFAULT_PROTOCOL_NAME: &[u8] = b"/libp2p/autonat/1.0.0";
+
 impl ProtocolName for AutoNatProtocol {
     fn protocol_name(&self) -> &[u8] {
-        b"/libp2p/autonat/1.0.0"
+        DEFAULT_PROTOCOL_NAME
     }
 }