diff --git a/examples/CMake/AudioPlugin/PluginProcessor.cpp b/examples/CMake/AudioPlugin/PluginProcessor.cpp
index 31394624a9..0dd5ac2a17 100644
--- a/examples/CMake/AudioPlugin/PluginProcessor.cpp
+++ b/examples/CMake/AudioPlugin/PluginProcessor.cpp
@@ -105,6 +105,8 @@ bool AudioPluginAudioProcessor::isBusesLayoutSupported (const BusesLayout& layou
   #else
     // This is the place where you check if the layout is supported.
     // In this template code we only support mono or stereo.
+    // Some plugin hosts, such as certain GarageBand versions, will only
+    // load plugins that support stereo bus layouts.
     if (layouts.getMainOutputChannelSet() != juce::AudioChannelSet::mono()
      && layouts.getMainOutputChannelSet() != juce::AudioChannelSet::stereo())
         return false;
diff --git a/extras/Projucer/Source/BinaryData/Templates/jucer_AudioPluginFilterTemplate.cpp b/extras/Projucer/Source/BinaryData/Templates/jucer_AudioPluginFilterTemplate.cpp
index 0b194bdb27..053611e8f7 100644
--- a/extras/Projucer/Source/BinaryData/Templates/jucer_AudioPluginFilterTemplate.cpp
+++ b/extras/Projucer/Source/BinaryData/Templates/jucer_AudioPluginFilterTemplate.cpp
@@ -111,6 +111,8 @@ bool %%filter_class_name%%::isBusesLayoutSupported (const BusesLayout& layouts)
   #else
     // This is the place where you check if the layout is supported.
     // In this template code we only support mono or stereo.
+    // Some plugin hosts, such as certain GarageBand versions, will only
+    // load plugins that support stereo bus layouts.
     if (layouts.getMainOutputChannelSet() != juce::AudioChannelSet::mono()
      && layouts.getMainOutputChannelSet() != juce::AudioChannelSet::stereo())
         return false;