diff --git a/.changelog/17456.txt b/.changelog/17456.txt
new file mode 100644
index 000000000000..7b81d53543ca
--- /dev/null
+++ b/.changelog/17456.txt
@@ -0,0 +1,3 @@
+```release-note:bug
+peering: Fix issue where modifying the list of exported services did not correctly replicate changes for services that exist in a non-default namespace.
+```
diff --git a/agent/grpc-external/services/peerstream/replication.go b/agent/grpc-external/services/peerstream/replication.go
index 45f66add78b7..f00b0b590a72 100644
--- a/agent/grpc-external/services/peerstream/replication.go
+++ b/agent/grpc-external/services/peerstream/replication.go
@@ -282,9 +282,11 @@ func (s *Server) handleUpsertExportedServiceList(
 		exportedServices[snSidecarProxy] = struct{}{}
 		serviceNames = append(serviceNames, sn)
 	}
-	entMeta := structs.NodeEnterpriseMetaInPartition(partition)
 
-	_, serviceList, err := s.GetStore().ServiceList(nil, entMeta, peerName)
+	// Ensure we query services from all namespaces in this partition when we perform
+	// this query or else we may not propagate updates / deletes correctly.
+	entMeta := acl.NewEnterpriseMetaWithPartition(partition, acl.WildcardName)
+	_, serviceList, err := s.GetStore().ServiceList(nil, &entMeta, peerName)
 	if err != nil {
 		return err
 	}
diff --git a/agent/grpc-external/services/peerstream/stream_test.go b/agent/grpc-external/services/peerstream/stream_test.go
index 7109460c2cae..887364b107e8 100644
--- a/agent/grpc-external/services/peerstream/stream_test.go
+++ b/agent/grpc-external/services/peerstream/stream_test.go
@@ -1957,7 +1957,7 @@ func processResponse_ExportedServiceUpdates(
 	localEntMeta acl.EnterpriseMeta,
 	peerName string,
 	tests []PeeringProcessResponse_testCase,
-) {
+) *MutableStatus {
 	// create a peering in the state store
 	peerID := "1fabcd52-1d46-49b0-b1d8-71559aee47f5"
 	require.NoError(t, store.PeeringWrite(31, &pbpeering.PeeringWriteRequest{
@@ -2038,6 +2038,7 @@ func processResponse_ExportedServiceUpdates(
 			run(t, tc)
 		})
 	}
+	return mst
 }
 
 func Test_processResponse_ExportedServiceUpdates(t *testing.T) {