diff --git a/tests/auto/widgets/qwebenginepage/tst_qwebenginepage.cpp b/tests/auto/widgets/qwebenginepage/tst_qwebenginepage.cpp
index a8730ce0d3fb35d44ff2f98f407c25437eed5f90..518713b519d5b8aa6ddaf5148a9f2ae8bdf6b01f 100644
--- a/tests/auto/widgets/qwebenginepage/tst_qwebenginepage.cpp
+++ b/tests/auto/widgets/qwebenginepage/tst_qwebenginepage.cpp
@@ -2893,6 +2893,9 @@ void tst_QWebEnginePage::testJSPrompt()
{
JSPromptPage page;
bool res;
+ QSignalSpy loadSpy(&page, SIGNAL(loadFinished(bool)));
+ page.setHtml(QStringLiteral("<html><body></body></html>"));
+ QTRY_COMPARE(loadSpy.count(), 1);
// OK + QString()
res = evaluateJavaScriptSync(&page,