diff --git a/mainwindow.cpp b/mainwindow.cpp
index afb85f9ba..9f72a092d 100644
--- a/mainwindow.cpp
+++ b/mainwindow.cpp
@@ -3501,7 +3501,7 @@ void MainWindow::guiUpdate()
               if(!m_config.bGenerate77() and itype == 6 and (m_i3>0 or m_n3>0)) m_isync=2;
               if(m_config.bGenerate77()) m_isync=2;
               qDebug() << "itype=" << itype << "i3, n3:"<< m_i3 << m_n3 << "isync="<< m_isync << ui->tx6->text();
-              char ft8msgbits[75 + 12]; //packed 75 bit ft8 message plus 12-bit CRC
+
               int ft8msgbits[77]; 
               genft8_(message, MyGrid, &bcontest, &m_i3, &m_n3, &m_isync, msgsent,
                       const_cast<int *> (ft8msgbits), const_cast<int *> (itone), 37, 6, 37);