diff --git a/mainwindow.cpp b/mainwindow.cpp
index b7e74ed..6b6402f 100644
--- a/mainwindow.cpp
+++ b/mainwindow.cpp
@@ -128,6 +128,7 @@ MainWindow::MainWindow(QWidget *parent) :
     connect(parserWorker, &Parser::receivedError, this, &MainWindow::receivedError);
     connect(parserWorker, &Parser::receivedSDDone, this, &MainWindow::receivedSDDone);
     connect(parserWorker, &Parser::receivedSDUpdate, this, &MainWindow::updateSDStatus);
+    connect(parserWorker, &Parser::receivedNotSDPrinting, this, &MainWindow::receivedNotSDPrinting);
     parserThread->start();
     parserThread->setPriority(QThread::HighestPriority);
 
@@ -784,6 +785,13 @@ void MainWindow::checkSDStatus()
         emit injectCommand("M27");
 }
 
+void MainWindow::receivedNotSDPrinting()
+{
+    sdprinting = false;
+    ui->fileBox->setDisabled(true);
+    ui->filename->setText(tr("Filename: "));
+}
+
 void MainWindow::on_stepspin_valueChanged(const QString &arg1)
 {
     if(arg1.toFloat() < 1) ui->stepspin->setSingleStep(0.1);
diff --git a/mainwindow.h b/mainwindow.h
index e3c76c8..bb3b9e4 100644
--- a/mainwindow.h
+++ b/mainwindow.h
@@ -103,6 +103,7 @@ private slots:
     void EEPROMSettingReceived(QString esetting);
     void receivedError();
     void receivedSDDone();
+    void receivedNotSDPrinting();
     void parseFile(QString filename);
     void recentClicked();
     void updateFileProgress(FileProgress);
diff --git a/parser.cpp b/parser.cpp
index 52f6b1b..54e4294 100644
--- a/parser.cpp
+++ b/parser.cpp
@@ -105,7 +105,7 @@ void Parser::parse(QByteArray data)
             emit receivedSDUpdate(p);
 
         }
-        else if(data.startsWith("Not SD "));
+        else if(data.startsWith("Not SD ")) emit receivedNotSDPrinting();
         else if(data.contains("Begin file list"))
         {
             SDFilesList.clear();
diff --git a/parser.h b/parser.h
index 0b121c3..e366304 100644
--- a/parser.h
+++ b/parser.h
@@ -28,6 +28,7 @@ protected:
 signals:
     void receivedTemperature(TemperatureReadings);
     void receivedSDUpdate(SDProgress);
+    void receivedNotSDPrinting();
     void receivedEEPROMLine(QString);
     void recievingEEPROMDone();
     void receivedSDFilesList(QStringList);