diff --git a/src/corelib/kernel/qobject.cpp b/src/corelib/kernel/qobject.cpp
index da06fc64339..7c1b340e801 100644
--- a/src/corelib/kernel/qobject.cpp
+++ b/src/corelib/kernel/qobject.cpp
@@ -1947,10 +1947,10 @@ static bool check_signal_macro(const QObject *sender, const char *signal,
     int sigcode = extract_code(signal);
     if (sigcode != QSIGNAL_CODE) {
         if (sigcode == QSLOT_CODE)
-            qWarning("Object::%s: Attempt to %s non-signal %s::%s",
+            qWarning("QObject::%s: Attempt to %s non-signal %s::%s",
                      func, op, sender->metaObject()->className(), signal+1);
         else
-            qWarning("Object::%s: Use the SIGNAL macro to %s %s::%s",
+            qWarning("QObject::%s: Use the SIGNAL macro to %s %s::%s",
                      func, op, sender->metaObject()->className(), signal);
         return false;
     }
@@ -1961,7 +1961,7 @@ static bool check_method_code(int code, const QObject *object,
                                const char *method, const char *func)
 {
     if (code != QSLOT_CODE && code != QSIGNAL_CODE) {
-        qWarning("Object::%s: Use the SLOT or SIGNAL macro to "
+        qWarning("QObject::%s: Use the SLOT or SIGNAL macro to "
                  "%s %s::%s", func, func, object->metaObject()->className(), method);
         return false;
     }
@@ -1978,11 +1978,11 @@ static void err_method_notfound(const QObject *object,
     }
     const char *loc = extract_location(method);
     if (strchr(method,')') == 0)                // common typing mistake
-        qWarning("Object::%s: Parentheses expected, %s %s::%s%s%s",
+        qWarning("QObject::%s: Parentheses expected, %s %s::%s%s%s",
                  func, type, object->metaObject()->className(), method+1,
                  loc ? " in ": "", loc ? loc : "");
     else
-        qWarning("Object::%s: No such %s %s::%s%s%s",
+        qWarning("QObject::%s: No such %s %s::%s%s%s",
                  func, type, object->metaObject()->className(), method+1,
                  loc ? " in ": "", loc ? loc : "");
 
@@ -1996,9 +1996,9 @@ static void err_info_about_objects(const char * func,
     QString a = sender ? sender->objectName() : QString();
     QString b = receiver ? receiver->objectName() : QString();
     if (!a.isEmpty())
-        qWarning("Object::%s:  (sender name:   '%s')", func, a.toLocal8Bit().data());
+        qWarning("QObject::%s:  (sender name:   '%s')", func, a.toLocal8Bit().data());
     if (!b.isEmpty())
-        qWarning("Object::%s:  (receiver name: '%s')", func, b.toLocal8Bit().data());
+        qWarning("QObject::%s:  (receiver name: '%s')", func, b.toLocal8Bit().data());
 }
 
 /*!
@@ -2578,7 +2578,7 @@ bool QObject::disconnect(const QObject *sender, const char *signal,
                          const QObject *receiver, const char *method)
 {
     if (sender == 0 || (receiver == 0 && method != 0)) {
-        qWarning("Object::disconnect: Unexpected null parameter");
+        qWarning("QObject::disconnect: Unexpected null parameter");
         return false;
     }
 
@@ -2703,12 +2703,12 @@ bool QObject::disconnect(const QObject *sender, const QMetaMethod &signal,
                          const QObject *receiver, const QMetaMethod &method)
 {
     if (sender == 0 || (receiver == 0 && method.mobj != 0)) {
-        qWarning("Object::disconnect: Unexpected null parameter");
+        qWarning("QObject::disconnect: Unexpected null parameter");
         return false;
     }
     if (signal.mobj) {
         if(signal.methodType() != QMetaMethod::Signal) {
-            qWarning("Object::%s: Attempt to %s non-signal %s::%s",
+            qWarning("QObject::%s: Attempt to %s non-signal %s::%s",
                      "disconnect","unbind",
                      sender->metaObject()->className(), signal.signature());
             return false;
@@ -4160,7 +4160,7 @@ bool QObject::disconnect(const QMetaObject::Connection &connection)
 bool QObject::disconnectImpl(const QObject *sender, void **signal, const QObject *receiver, void **slot, const QMetaObject *senderMetaObject)
 {
     if (sender == 0 || (receiver == 0 && slot != 0)) {
-        qWarning("Object::disconnect: Unexpected null parameter");
+        qWarning("QObject::disconnect: Unexpected null parameter");
         return false;
     }
 
diff --git a/tests/auto/corelib/kernel/qobject/tst_qobject.cpp b/tests/auto/corelib/kernel/qobject/tst_qobject.cpp
index 05b9229c3d1..225e06a552f 100644
--- a/tests/auto/corelib/kernel/qobject/tst_qobject.cpp
+++ b/tests/auto/corelib/kernel/qobject/tst_qobject.cpp
@@ -3999,7 +3999,7 @@ void tst_QObject::disconnectNotSignalMetaMethod()
     QMetaMethod slot = s.metaObject()->method(
             s.metaObject()->indexOfMethod("aPublicSlot()"));
 
-    QTest::ignoreMessage(QtWarningMsg,"Object::disconnect: Attempt to unbind non-signal SenderObject::aPublicSlot()");
+    QTest::ignoreMessage(QtWarningMsg,"QObject::disconnect: Attempt to unbind non-signal SenderObject::aPublicSlot()");
     QVERIFY(!QObject::disconnect(&s, slot, &r, QMetaMethod()));
 }