diff --git a/widgets/mainwindow.cpp b/widgets/mainwindow.cpp
index 8075f6b52..d8e80d6bd 100644
--- a/widgets/mainwindow.cpp
+++ b/widgets/mainwindow.cpp
@@ -1609,7 +1609,7 @@ void MainWindow::dataSink(qint64 frames)
       m_saveWAVWatcher.setFuture (QtConcurrent::run (std::bind (&MainWindow::save_wave_file,
             this, m_fnameWE, &dec_data.d2[0], samples, m_config.my_callsign(),
             m_config.my_grid(), m_mode, m_nSubMode, m_freqNominal, m_hisCall, m_hisGrid)));
-      if (m_mode=="WSPR" or m_mode=="FST4W") {
+      if (m_mode=="WSPR") {
         QString c2name_string {m_fnameWE + ".c2"};
         int len1=c2name_string.length();
         char c2name[80];