diff --git a/src/network/access/qhttpnetworkconnection.cpp b/src/network/access/qhttpnetworkconnection.cpp
index 86637d24a7a..89402cb58d3 100644
--- a/src/network/access/qhttpnetworkconnection.cpp
+++ b/src/network/access/qhttpnetworkconnection.cpp
@@ -258,9 +258,9 @@ void QHttpNetworkConnectionPrivate::prepareRequest(HttpMessagePair &messagePair)
 
     // add missing fields for the request
     QByteArray value;
+#ifndef Q_OS_WASM
     // check if Content-Length is provided
     QNonContiguousByteDevice* uploadByteDevice = request.uploadByteDevice();
-#ifndef Q_OS_WASM
     if (uploadByteDevice) {
         const qint64 contentLength = request.contentLength();
         const qint64 uploadDeviceSize = uploadByteDevice->size();