diff --git a/juce_amalgamated.cpp b/juce_amalgamated.cpp
index 4915232072..dac5a7599a 100644
--- a/juce_amalgamated.cpp
+++ b/juce_amalgamated.cpp
@@ -32904,7 +32904,7 @@ public:
         : node (node_),
           processor (node_->processor),
           audioChannelsToUse (audioChannelsToUse_),
-          totalChans (totalChans_),
+          totalChans (jmax (1, totalChans_)),
           midiBufferToUse (midiBufferToUse_)
     {
         channels = (float**) juce_calloc (sizeof (float*) * totalChans_);
diff --git a/src/juce_appframework/audio/processors/juce_AudioProcessorGraph.cpp b/src/juce_appframework/audio/processors/juce_AudioProcessorGraph.cpp
index 4add3b57b4..221c18a2f4 100644
--- a/src/juce_appframework/audio/processors/juce_AudioProcessorGraph.cpp
+++ b/src/juce_appframework/audio/processors/juce_AudioProcessorGraph.cpp
@@ -511,7 +511,7 @@ public:
         : node (node_),
           processor (node_->processor),
           audioChannelsToUse (audioChannelsToUse_),
-          totalChans (totalChans_),
+          totalChans (jmax (1, totalChans_)),
           midiBufferToUse (midiBufferToUse_)
     {
         channels = (float**) juce_calloc (sizeof (float*) * totalChans_);