diff --git a/src/corelib/kernel/qmetacontainer.h b/src/corelib/kernel/qmetacontainer.h
index 8c0d723f64..f3a6266eb4 100644
--- a/src/corelib/kernel/qmetacontainer.h
+++ b/src/corelib/kernel/qmetacontainer.h
@@ -672,7 +672,7 @@ public:
     }
 
 private:
-    QtMetaContainerPrivate::QMetaSequenceInterface *d_ptr = nullptr;
+    const QtMetaContainerPrivate::QMetaSequenceInterface *d_ptr = nullptr;
 };
 
 QT_END_NAMESPACE