diff --git a/src/corelib/io/qprocess_win.cpp b/src/corelib/io/qprocess_win.cpp
index 05c9d6594c..fa9efcb1ce 100644
--- a/src/corelib/io/qprocess_win.cpp
+++ b/src/corelib/io/qprocess_win.cpp
@@ -102,7 +102,7 @@ static void qt_create_pipe(Q_PIPE *pipe, bool isInputPipe)
         // ### The user must make sure to call qsrand() to make the pipe names less predictable.
         // ### Replace the call to qrand() with a secure version, once we have it in Qt.
         _snwprintf(pipeName, sizeof(pipeName) / sizeof(pipeName[0]),
-                L"\\\\.\\pipe\\qt-%X", qrand());
+                L"\\\\.\\pipe\\qt-%lX-%X", long(QCoreApplication::applicationPid()), qrand());
 
         DWORD dwOpenMode = FILE_FLAG_OVERLAPPED;
         DWORD dwOutputBufferSize = 0;