diff --git a/mainwindow.cpp b/mainwindow.cpp
index 0a7b59ee5..bf9cda8ac 100644
--- a/mainwindow.cpp
+++ b/mainwindow.cpp
@@ -973,7 +973,7 @@ void MainWindow::dataSink(qint64 frames)
       if(m_diskData) {
 //      cmnd='"' + m_appDir + '"' + "/wsprd " + m_path;
         cmnd='"' + m_appDir + '"' + "/wsprd -a \"" +
-            QDir::toNativeSeparators(m_dataDir.absolutePath()) + "\" " + m_path;
+            QDir::toNativeSeparators(m_dataDir.absolutePath()) + "\" \"" + m_path + "\"";
 //      if(m_TRseconds==900) cmnd='"' + m_appDir + '"' + "/wsprd -m 15" + t2 +
 //          m_path + '"';
       } else {