diff --git a/src/corelib/mimetypes/qmimeprovider_p.h b/src/corelib/mimetypes/qmimeprovider_p.h
index 5de4a635ee..1cd1a00f51 100644
--- a/src/corelib/mimetypes/qmimeprovider_p.h
+++ b/src/corelib/mimetypes/qmimeprovider_p.h
@@ -31,6 +31,8 @@ class QMimeMagicRuleMatcher;
 
 class QMimeProviderBase
 {
+    Q_DISABLE_COPY(QMimeProviderBase)
+
 public:
     QMimeProviderBase(QMimeDatabasePrivate *db, const QString &directory);
     virtual ~QMimeProviderBase() {}