diff --git a/src/util/address.rs b/src/util/address.rs
index afa4c714..51b3751a 100644
--- a/src/util/address.rs
+++ b/src/util/address.rs
@@ -139,6 +139,7 @@ impl From<bech32::Error> for Error {
 
 /// The different types of addresses.
 #[derive(Debug, Clone, Copy, PartialEq, Eq, PartialOrd, Ord, Hash)]
+#[non_exhaustive]
 pub enum AddressType {
     /// Pay to pubkey hash.
     P2pkh,