diff --git a/src/network/access/qnetworkreplyfileimpl.cpp b/src/network/access/qnetworkreplyfileimpl.cpp
index e1022afcfa3..7d2ba390691 100644
--- a/src/network/access/qnetworkreplyfileimpl.cpp
+++ b/src/network/access/qnetworkreplyfileimpl.cpp
@@ -57,9 +57,10 @@ QNetworkReplyFileImpl::QNetworkReplyFileImpl(QNetworkAccessManager *manager, con
         // we handle only local files
         QString msg = QCoreApplication::translate("QNetworkAccessFileBackend", "Request for opening non-local file %1").arg(url.toString());
         setError(QNetworkReply::ProtocolInvalidOperationError, msg);
+        setFinished(true); // We're finished, will emit finished() after ctor is done.
         QMetaObject::invokeMethod(this, "errorOccurred", Qt::QueuedConnection,
             Q_ARG(QNetworkReply::NetworkError, QNetworkReply::ProtocolInvalidOperationError));
-        fileOpenFinished(false);
+        QMetaObject::invokeMethod(this, [this](){ fileOpenFinished(false); }, Qt::QueuedConnection);
         return;
     }
 #endif
diff --git a/tests/auto/network/access/qnetworkreply/tst_qnetworkreply.cpp b/tests/auto/network/access/qnetworkreply/tst_qnetworkreply.cpp
index d0bc342afe0..1ab3cb97f5a 100644
--- a/tests/auto/network/access/qnetworkreply/tst_qnetworkreply.cpp
+++ b/tests/auto/network/access/qnetworkreply/tst_qnetworkreply.cpp
@@ -260,6 +260,7 @@ private Q_SLOTS:
     void ioGetFromFileSpecial();
     void ioGetFromFile_data();
     void ioGetFromFile();
+    void ioGetFromFileUrl();
     void ioGetFromFtp_data();
     void ioGetFromFtp();
     void ioGetFromFtpWithReuse();
@@ -3330,6 +3331,18 @@ void tst_QNetworkReply::ioGetFromFile()
     QCOMPARE(reader.data, data);
 }
 
+void tst_QNetworkReply::ioGetFromFileUrl()
+{
+    // This immediately fails on non-windows platforms:
+    QNetworkRequest request(QUrl("file://unc-server/some/path"));
+    QNetworkReplyPtr reply(manager.get(request));
+    QSignalSpy finishedSpy(reply.get(), &QNetworkReply::finished);
+    // QTBUG-105618: This would, on non-Windows platforms, never happen because the signal
+    // was emitted before the constructor finished, leaving no chance at all to connect to the
+    // signal
+    QVERIFY(finishedSpy.wait());
+}
+
 void tst_QNetworkReply::ioGetFromFtp_data()
 {
     if (!ftpSupported)