diff --git a/plugins/samplesink/fileoutput/fileoutputgui.cpp b/plugins/samplesink/fileoutput/fileoutputgui.cpp
index 139663136..325713850 100644
--- a/plugins/samplesink/fileoutput/fileoutputgui.cpp
+++ b/plugins/samplesink/fileoutput/fileoutputgui.cpp
@@ -58,7 +58,7 @@ FileOutputGui::FileOutputGui(DeviceUISet *deviceUISet, QWidget* parent) :
 	ui->centerFrequency->setValueRange(7, 0, pow(10,7));
 
     ui->sampleRate->setColorMapper(ColorMapper(ColorMapper::GrayGreenYellow));
-    ui->sampleRate->setValueRange(7, 32000U, 9000000U);
+    ui->sampleRate->setValueRange(8, 32000U, 90000000U);
 
 	ui->fileNameText->setText(m_fileName);
 
diff --git a/plugins/samplesink/testsink/testsinkgui.cpp b/plugins/samplesink/testsink/testsinkgui.cpp
index 4ab115230..1f7132777 100644
--- a/plugins/samplesink/testsink/testsinkgui.cpp
+++ b/plugins/samplesink/testsink/testsinkgui.cpp
@@ -55,7 +55,7 @@ TestSinkGui::TestSinkGui(DeviceUISet *deviceUISet, QWidget* parent) :
 	ui->centerFrequency->setValueRange(7, 0, pow(10,7));
 
     ui->sampleRate->setColorMapper(ColorMapper(ColorMapper::GrayGreenYellow));
-    ui->sampleRate->setValueRange(7, 32000U, 9000000U);
+    ui->sampleRate->setValueRange(8, 32000U, 90000000U);
 
     m_spectrumVis = m_sampleSink->getSpectrumVis();
     m_spectrumVis->setGLSpectrum(ui->glSpectrum);