diff --git a/src/corelib/mimetypes/qmimetype.cpp b/src/corelib/mimetypes/qmimetype.cpp
index 0ffa186d2e..a23e545729 100644
--- a/src/corelib/mimetypes/qmimetype.cpp
+++ b/src/corelib/mimetypes/qmimetype.cpp
@@ -443,4 +443,17 @@ bool QMimeType::inherits(const QString &mimeTypeName) const
     return QMimeDatabasePrivate::instance()->inherits(d->name, mimeTypeName);
 }
 
+#ifndef QT_NO_DEBUG_STREAM
+QDebug operator<<(QDebug debug, const QMimeType &mime)
+{
+    QDebugStateSaver saver(debug);
+    if (!mime.isValid()) {
+        debug.nospace() << "QMimeType(invalid)";
+    } else {
+        debug.nospace() << "QMimeType(" << mime.name() << ")";
+    }
+    return debug;
+}
+#endif
+
 QT_END_NAMESPACE
diff --git a/src/corelib/mimetypes/qmimetype.h b/src/corelib/mimetypes/qmimetype.h
index 24d043eebc..d5acbc2184 100644
--- a/src/corelib/mimetypes/qmimetype.h
+++ b/src/corelib/mimetypes/qmimetype.h
@@ -110,5 +110,10 @@ protected:
 
 Q_DECLARE_SHARED(QMimeType)
 
+#ifndef QT_NO_DEBUG_STREAM
+class QDebug;
+Q_CORE_EXPORT QDebug operator<<(QDebug debug, const QMimeType &mime);
+#endif
+
 QT_END_NAMESPACE
 #endif   // QMIMETYPE_H
diff --git a/tests/auto/corelib/io/qdebug/tst_qdebug.cpp b/tests/auto/corelib/io/qdebug/tst_qdebug.cpp
index 890f9f8dcb..07e011f449 100644
--- a/tests/auto/corelib/io/qdebug/tst_qdebug.cpp
+++ b/tests/auto/corelib/io/qdebug/tst_qdebug.cpp
@@ -211,6 +211,8 @@ void tst_QDebug::debugSpaceHandling() const
     QCOMPARE(s_msg, QString::fromLatin1("QPoint(21,22) QRect(23,24 25x26) QLine(QPoint(27,28),QPoint(29,30))"));
     qDebug() << QPointF(21, 22) << QRectF(23, 24, 25, 26) << QLineF(27, 28, 29, 30);
     QCOMPARE(s_msg, QString::fromLatin1("QPointF(21,22) QRectF(23,24 25x26) QLineF(QPointF(27,28),QPointF(29,30))"));
+    qDebug() << QMimeType() << QMimeDatabase().mimeTypeForName("application/pdf") << "foo";
+    QCOMPARE(s_msg, QString::fromLatin1("QMimeType(invalid) QMimeType(\"application/pdf\") foo"));
 }
 
 void tst_QDebug::stateSaver() const