diff --git a/libdiscover/backends/KNSBackend/KNSBackend.cpp b/libdiscover/backends/KNSBackend/KNSBackend.cpp
--- a/libdiscover/backends/KNSBackend/KNSBackend.cpp
+++ b/libdiscover/backends/KNSBackend/KNSBackend.cpp
@@ -209,6 +209,7 @@
 {
     m_responsePending = false;
 
+    const auto filtered = kFilter<KNSCore::EntryInternal::List>(entries, [this](const KNSCore::EntryInternal& entry){ return entry.isValid(); });
     const auto resources = kTransform<QVector<AbstractResource*>>(entries, [this](const KNSCore::EntryInternal& entry){ return resourceForEntry(entry); });
     if (!resources.isEmpty()) {
         Q_EMIT receivedResources(resources);