diff --git a/plugins/samplesource/perseus/perseusinput.cpp b/plugins/samplesource/perseus/perseusinput.cpp
index 7c19c5cf9..17e1f0094 100644
--- a/plugins/samplesource/perseus/perseusinput.cpp
+++ b/plugins/samplesource/perseus/perseusinput.cpp
@@ -301,7 +301,7 @@ bool PerseusInput::applySettings(const PerseusSettings& settings, bool force)
 
         if (m_perseusDescriptor != 0)
         {
-            int rate = m_sampleRates[m_settings.m_devSampleRateIndex < m_sampleRates.size() ? m_settings.m_devSampleRateIndex: 0];
+            int rate = m_sampleRates[settings.m_devSampleRateIndex < m_sampleRates.size() ? settings.m_devSampleRateIndex: 0];
             int rc = perseus_set_sampling_rate(m_perseusDescriptor, rate);
 
             if (rc < 0) {
@@ -379,6 +379,15 @@ bool PerseusInput::applySettings(const PerseusSettings& settings, bool force)
         m_deviceAPI->getDeviceEngineInputMessageQueue()->push(notif);
     }
 
+    if ((m_settings.m_devSampleRateIndex != settings.m_devSampleRateIndex) || force)
+    {
+        if (m_perseusThread && m_perseusThread->isRunning())
+        {
+            m_perseusThread->stopWork();
+            m_perseusThread->startWork();
+        }
+    }
+
     m_settings = settings;
     m_settings.m_devSampleRateIndex = sampleRateIndex;
     return true;