diff --git a/plugins/samplesource/rtlsdr/rtlsdrgui.cpp b/plugins/samplesource/rtlsdr/rtlsdrgui.cpp
index d6660fa9e..bfa328b6d 100644
--- a/plugins/samplesource/rtlsdr/rtlsdrgui.cpp
+++ b/plugins/samplesource/rtlsdr/rtlsdrgui.cpp
@@ -36,7 +36,10 @@ RTLSDRGui::RTLSDRGui(DeviceSourceAPI *deviceAPI, QWidget* parent) :
 	m_sampleSource(0),
 	m_lastEngineState((DSPDeviceSourceEngine::State)-1)
 {
-	ui->setupUi(this);
+    m_sampleSource = new RTLSDRInput(m_deviceAPI);
+    m_deviceAPI->setSource(m_sampleSource);
+
+    ui->setupUi(this);
 	ui->centerFrequency->setColorMapper(ColorMapper(ColorMapper::ReverseGold));
 	ui->centerFrequency->setValueRange(7, 24000U, 1900000U);
 
@@ -49,9 +52,7 @@ RTLSDRGui::RTLSDRGui(DeviceSourceAPI *deviceAPI, QWidget* parent) :
 
 	displaySettings();
 
-	m_sampleSource = new RTLSDRInput(m_deviceAPI);
 	connect(m_sampleSource->getOutputMessageQueueToGUI(), SIGNAL(messageEnqueued()), this, SLOT(handleSourceMessages()));
-	m_deviceAPI->setSource(m_sampleSource);
 
     char recFileNameCStr[30];
     sprintf(recFileNameCStr, "test_%d.sdriq", m_deviceAPI->getDeviceUID());