diff --git a/modules/juce_dsp/frequency/juce_Convolution.cpp b/modules/juce_dsp/frequency/juce_Convolution.cpp
index 08678f1b17..bdbce85bde 100644
--- a/modules/juce_dsp/frequency/juce_Convolution.cpp
+++ b/modules/juce_dsp/frequency/juce_Convolution.cpp
@@ -104,6 +104,7 @@ struct ConvolutionEngine
 
         buffersInputSegments.clear();
         buffersImpulseSegments.clear();
+        bufferOutput.clear();
 
         for (size_t i = 0; i < numInputSegments; ++i)
         {