diff --git a/src/network/access/qnetworkreplyhttpimpl.cpp b/src/network/access/qnetworkreplyhttpimpl.cpp
index b23550f364..3e1fe761ee 100644
--- a/src/network/access/qnetworkreplyhttpimpl.cpp
+++ b/src/network/access/qnetworkreplyhttpimpl.cpp
@@ -752,12 +752,12 @@ void QNetworkReplyHttpImplPrivate::postRequest(const QNetworkRequest &newHttpReq
         if (newRequestHeaders.contains(QHttpHeaders::WellKnownHeader::Range)) {
             // Need to adjust resume offset for user specified range
 
-            newRequestHeaders.removeAll(QHttpHeaders::WellKnownHeader::Range);
-
             // We've already verified that requestRange starts with "bytes=", see canResume.
-            const auto rangeHeader = newHttpRequest.headers().value(QHttpHeaders::WellKnownHeader::Range);
+            const auto rangeHeader = newRequestHeaders.value(QHttpHeaders::WellKnownHeader::Range);
             const auto requestRange = QByteArrayView(rangeHeader).mid(bytesEqualPrefix().size());
 
+            newRequestHeaders.removeAll(QHttpHeaders::WellKnownHeader::Range);
+
             int index = requestRange.indexOf('-');
 
             quint64 requestStartOffset = requestRange.left(index).toULongLong();