diff --git a/lib/superfox/sftx_sub.f90 b/lib/superfox/sftx_sub.f90
index 5903e0801..ac4bf2fbc 100644
--- a/lib/superfox/sftx_sub.f90
+++ b/lib/superfox/sftx_sub.f90
@@ -1,4 +1,4 @@
-subroutine sftx_sub(fname,foxcall0,ckey0)
+subroutine sftx_sub(ckey0)
 
 ! This routine is required in order to create a SuperFox transmission.
 
@@ -13,13 +13,11 @@ subroutine sftx_sub(fname,foxcall0,ckey0)
 
   use qpc_mod
   use sfox_mod
-  character*(*) fname                 !Corrected path for sfox_1.dat
   character*120 line                  !List of SuperFox message pieces
   character*40 cmsg                   !Old-style Fox messages
   character*26 freeTextMsg
   character*(*) ckey0
   character*10 ckey
-  character*(*) foxcall0
   character*11 foxcall
   logical*1 bMoreCQs,bSendMsg
   integer*1 xin(0:49)                 !Packed message as 7-bit symbols
diff --git a/widgets/mainwindow.cpp b/widgets/mainwindow.cpp
index c3ca57730..979a782c6 100644
--- a/widgets/mainwindow.cpp
+++ b/widgets/mainwindow.cpp
@@ -182,7 +182,7 @@ extern "C" {
 
   void sfox_wave_gfsk_(char const * fname, FCL len);
 
-  void sftx_sub_(char const * fname, char const * foxcall, char const * otp_key, FCL len1, FCL len2, FCL len3);
+  void sftx_sub_(char const * otp_key, FCL len1);
 
   void plotsave_(float swide[], int* m_w , int* m_h1, int* irow);
 
@@ -11429,8 +11429,7 @@ void MainWindow::on_jt65Button_clicked()
 
 void MainWindow::sfox_tx() {
   auto fname{QDir::toNativeSeparators(m_config.writeable_data_dir().absoluteFilePath("sfox_1.dat")).toLocal8Bit()};
-  QStringList args{fname};
-  args.append(m_config.my_callsign());
+  QString ckey{"OTP:000000"};
   LOG_INFO(QString("sfox_tx: OTP code is %1").arg(foxOTPcode()));
 #ifdef FOX_OTP
   qint32 otp_key = 0;
@@ -11448,7 +11447,7 @@ void MainWindow::sfox_tx() {
           otp_key = 0;
           LOG_INFO(QString("TOTP SF: Incorrect length"));
         }
-        args.append(QString("OTP:%1").arg(otp_key));
+        ckey=(QString("OTP:%1").arg(otp_key));
       } else
       {
         showStatusMessage (tr ("TOTP SF: seed not long enough."));
@@ -11456,13 +11455,7 @@ void MainWindow::sfox_tx() {
       }
   }
 #endif
-LOG_INFO(QString("%1 %2").arg(QDir::toNativeSeparators(m_appDir)+QDir::separator()+"sftx").arg(args.join(" ")).toStdString());
-  auto fname1 {QDir::toNativeSeparators(m_config.writeable_data_dir().absoluteFilePath("sfox_1.dat")).toLocal8Bit()};
-//  qDebug() << "aa" << fname1;
-//  qDebug() << "bb" << args[0] << args[1] << args[2];
-  sftx_sub_(fname1.constData(), args[1].toLatin1().constData() , args[2].toLatin1().constData(), (FCL)fname1.size(),
-      (FCL)args[1].size(), (FCL)args[2].size());
+  sftx_sub_(ckey.toLatin1().constData(), (FCL)ckey.size());
   auto fname2 {QDir::toNativeSeparators(m_config.writeable_data_dir().absoluteFilePath("sfox_2.dat")).toLocal8Bit()};
-
   sfox_wave_gfsk_(fname2.constData(), (FCL)fname2.size());
 }