diff --git a/discovery/kubernetes/endpointslice.go b/discovery/kubernetes/endpointslice.go
index 7331605f9b..1002025128 100644
--- a/discovery/kubernetes/endpointslice.go
+++ b/discovery/kubernetes/endpointslice.go
@@ -110,7 +110,8 @@ func NewEndpointSlice(l *slog.Logger, eps cache.SharedIndexInformer, svc, pod, n
 				e.logger.Error("converting to EndpointSlice object failed", "err", err)
 				continue
 			}
-			if lv, exists := es.Labels[v1.LabelServiceName]; exists && lv == svc.Name {
+			// Only consider the underlying EndpointSlices in the same namespace.
+			if svcName, exists := es.Labels[v1.LabelServiceName]; exists && svcName == svc.Name && es.Namespace == svc.Namespace {
 				e.enqueue(es)
 			}
 		}