diff --git a/modules/juce_audio_basics/sources/juce_IIRFilterAudioSource.cpp b/modules/juce_audio_basics/sources/juce_IIRFilterAudioSource.cpp
index 4ee66f572c..712a24b9d3 100644
--- a/modules/juce_audio_basics/sources/juce_IIRFilterAudioSource.cpp
+++ b/modules/juce_audio_basics/sources/juce_IIRFilterAudioSource.cpp
@@ -41,6 +41,12 @@ void IIRFilterAudioSource::setCoefficients (const IIRCoefficients& newCoefficien
         iirFilters.getUnchecked(i)->setCoefficients (newCoefficients);
 }
 
+void IIRFilterAudioSource::makeInactive()
+{
+    for (int i = iirFilters.size(); --i >= 0;)
+        iirFilters.getUnchecked(i)->makeInactive();
+}
+
 //==============================================================================
 void IIRFilterAudioSource::prepareToPlay (int samplesPerBlockExpected, double sampleRate)
 {
diff --git a/modules/juce_audio_basics/sources/juce_IIRFilterAudioSource.h b/modules/juce_audio_basics/sources/juce_IIRFilterAudioSource.h
index 90796f395d..04a8bf2b3a 100644
--- a/modules/juce_audio_basics/sources/juce_IIRFilterAudioSource.h
+++ b/modules/juce_audio_basics/sources/juce_IIRFilterAudioSource.h
@@ -53,6 +53,9 @@ public:
     /** Changes the filter to use the same parameters as the one being passed in. */
     void setCoefficients (const IIRCoefficients& newCoefficients);
 
+    /** Calls IIRFilter::makeInactive() on all the filters being used internally. */
+    void makeInactive();
+
     //==============================================================================
     void prepareToPlay (int samplesPerBlockExpected, double sampleRate);
     void releaseResources();