diff --git a/src/network/kernel/qhostinfo.cpp b/src/network/kernel/qhostinfo.cpp
index d15c4f27ca1..3e1b019a93e 100644
--- a/src/network/kernel/qhostinfo.cpp
+++ b/src/network/kernel/qhostinfo.cpp
@@ -72,6 +72,9 @@ Q_APPLICATION_STATIC(QHostInfoLookupManager, theHostInfoLookupManager)
 
 }
 
+QHostInfoResult::~QHostInfoResult()
+    = default;
+
 /*
     The calling thread is likely the one that executes the lookup via
     QHostInfoRunnable. Unless we operate with a queued connection already,
@@ -818,6 +821,9 @@ QHostInfoRunnable::QHostInfoRunnable(const QString &hn, int i, const QObject *re
     setAutoDelete(true);
 }
 
+QHostInfoRunnable::~QHostInfoRunnable()
+    = default;
+
 // the QHostInfoLookupManager will at some point call this via a QThreadPool
 void QHostInfoRunnable::run()
 {
diff --git a/src/network/kernel/qhostinfo_p.h b/src/network/kernel/qhostinfo_p.h
index 6b755ab0c2c..88e8c774296 100644
--- a/src/network/kernel/qhostinfo_p.h
+++ b/src/network/kernel/qhostinfo_p.h
@@ -51,6 +51,8 @@ public:
             moveToThread(receiver->thread());
     }
 
+    ~QHostInfoResult() override;
+
     void postResultsReady(const QHostInfo &info);
 
 Q_SIGNALS:
@@ -143,6 +145,8 @@ class QHostInfoRunnable : public QRunnable
 public:
     QHostInfoRunnable(const QString &hn, int i, const QObject *receiver,
                       QtPrivate::QSlotObjectBase *slotObj);
+    ~QHostInfoRunnable() override;
+
     void run() override;
 
     QString toBeLookedUp;