diff --git a/plugins/channeltx/udpsink/udpsink.cpp b/plugins/channeltx/udpsink/udpsink.cpp
index 2303dfc62..dccb8ad77 100644
--- a/plugins/channeltx/udpsink/udpsink.cpp
+++ b/plugins/channeltx/udpsink/udpsink.cpp
@@ -356,6 +356,7 @@ void UDPSink::apply(bool force)
         m_levelCalcCount = 0;
         m_peakLevel = 0.0f;
         m_levelSum = 0.0f;
+        m_udpHandler.resizeBuffer(m_config.m_inputSampleRate);
         m_settingsMutex.unlock();
     }