diff --git a/src/corelib/io/qwindowspipewriter.cpp b/src/corelib/io/qwindowspipewriter.cpp
index 839dc8a19c..3731aba97b 100644
--- a/src/corelib/io/qwindowspipewriter.cpp
+++ b/src/corelib/io/qwindowspipewriter.cpp
@@ -202,6 +202,8 @@ bool QWindowsPipeWriter::write(const QByteArray &ba)
 void QWindowsPipeWriter::stop()
 {
     stopped = true;
+    bytesWrittenPending = false;
+    pendingBytesWrittenValue = 0;
     if (writeSequenceStarted) {
         if (!qt_cancelIo(handle, &overlapped)) {
             const DWORD dwError = GetLastError();