diff --git a/sdrbase/dsp/threadedbasebandsamplesource.cpp b/sdrbase/dsp/threadedbasebandsamplesource.cpp
index d8fbf3c06..97d059234 100644
--- a/sdrbase/dsp/threadedbasebandsamplesource.cpp
+++ b/sdrbase/dsp/threadedbasebandsamplesource.cpp
@@ -36,7 +36,10 @@ ThreadedBasebandSampleSource::ThreadedBasebandSampleSource(BasebandSampleSource*
 
 ThreadedBasebandSampleSource::~ThreadedBasebandSampleSource()
 {
-    stop();
+    if (m_thread->isRunning()) {
+        stop();
+    }
+
     delete m_thread;
 }