diff --git a/src/network/kernel/qhostinfo.cpp b/src/network/kernel/qhostinfo.cpp
index fc36d0a962..6662ae1eee 100644
--- a/src/network/kernel/qhostinfo.cpp
+++ b/src/network/kernel/qhostinfo.cpp
@@ -234,7 +234,7 @@ static int nextId()
 
     \sa abortHostLookup(), addresses(), error(), fromName()
 */
-int QHostInfo::lookupHost(const QString &name, QObject *receiver, const char *member)
+int QHostInfo::lookupHost(const QString &name, QT7_ONLY(const) QObject *receiver, const char *member)
 {
     return QHostInfo::lookupHostImpl(name, receiver, nullptr, member);
 }
diff --git a/src/network/kernel/qhostinfo.h b/src/network/kernel/qhostinfo.h
index b4b66f43fe..12a2db7e8b 100644
--- a/src/network/kernel/qhostinfo.h
+++ b/src/network/kernel/qhostinfo.h
@@ -48,7 +48,7 @@ public:
     void setLookupId(int id);
     int lookupId() const;
 
-    static int lookupHost(const QString &name, QObject *receiver, const char *member);
+    static int lookupHost(const QString &name, QT7_ONLY(const) QObject *receiver, const char *member);
     static void abortHostLookup(int lookupId);
 
     static QHostInfo fromName(const QString &name);