diff --git a/src/qt/paymentserver.h b/src/qt/paymentserver.h
index f1ffc9008..43b20915c 100644
--- a/src/qt/paymentserver.h
+++ b/src/qt/paymentserver.h
@@ -33,6 +33,7 @@
 
 class QApplication;
 class QLocalServer;
+class QUrl;
 
 class PaymentServer : public QObject
 {