diff --git a/src/lib/downloads/downloadfilehelper.cpp b/src/lib/downloads/downloadfilehelper.cpp
index 7f454dd71..1b57c491f 100644
--- a/src/lib/downloads/downloadfilehelper.cpp
+++ b/src/lib/downloads/downloadfilehelper.cpp
@@ -228,13 +228,13 @@ QString DownloadFileHelper::getFileName(QNetworkReply* reply)
         QString value = QString::fromLatin1(reply->rawHeader("Content-Disposition"));
 
         // We try to use UTF-8 encoded filename first if present
-        if (value.contains("filename*=UTF-8")) {
-            QRegExp reg("filename\\*=UTF-8''([^;]*)");
+        if (value.contains(QRegExp("filename\\s*\\*\\s*=\\s*UTF-8", Qt::CaseInsensitive))) {
+            QRegExp reg("filename\\s*\\*\\s*=\\s*UTF-8''([^;]*)", Qt::CaseInsensitive);
             reg.indexIn(value);
             path = QUrl::fromPercentEncoding(reg.cap(1).toUtf8()).trimmed();
         }
-        else if (value.contains("filename=")) {
-            QRegExp reg("filename=([^;]*)");
+        else if (value.contains(QRegExp("filename\\s*=", Qt::CaseInsensitive))) {
+            QRegExp reg("filename\\s*=([^;]*)", Qt::CaseInsensitive);
             reg.indexIn(value);
             path = reg.cap(1).trimmed();