diff --git a/src/discovery/sedp_messages.rs b/src/discovery/sedp_messages.rs
index 6f50ace2..73875c69 100644
--- a/src/discovery/sedp_messages.rs
+++ b/src/discovery/sedp_messages.rs
@@ -138,7 +138,11 @@ impl From<RtpsReaderProxy> for ReaderProxy {
     Self {
       remote_reader_guid: rtps_reader_proxy.remote_reader_guid,
       expects_inline_qos: rtps_reader_proxy.expects_inline_qos(),
-      unicast_locator_list: rtps_reader_proxy.unicast_locator_list,
+      unicast_locator_list: rtps_reader_proxy
+        .unicast_locator_list
+        .into_iter()
+        .chain(rtps_reader_proxy.loopback_unicast_locators)
+        .collect(),
       multicast_locator_list: rtps_reader_proxy.multicast_locator_list,
     }
   }
diff --git a/src/rtps/rtps_reader_proxy.rs b/src/rtps/rtps_reader_proxy.rs
index c9716e70..e5942e76 100644
--- a/src/rtps/rtps_reader_proxy.rs
+++ b/src/rtps/rtps_reader_proxy.rs
@@ -775,6 +775,7 @@ mod route_tests {
 
   use super::*;
   use crate::{
+    discovery::sedp_messages::ReaderProxy,
     rtps::transmit::{DefaultRouteSelector, InterfaceObservations, InterfaceSelector},
     structure::guid::GuidPrefix,
   };
@@ -877,6 +878,16 @@ mod route_tests {
     );
   }
 
+  #[test]
+  fn discovery_record_keeps_bucket_loopback() {
+    // A remote reader bound only to loopback, e.g. CycloneDDS on `lo`.
+    let mut rp = proxy_with_prefix(GuidPrefix::new(&[9; 12]));
+    rp.loopback_unicast_locators = vec![udp([127, 0, 0, 1], 7413)];
+
+    let record = ReaderProxy::from(rp);
+    assert_eq!(record.unicast_locator_list, vec![udp([127, 0, 0, 1], 7413)]);
+  }
+
   #[test]
   fn same_host_route_selects_bucket_loopback() {
     let prefix = GuidPrefix::new(&[8; 12]);