diff --git a/extras/Build/juce_build_tools/utils/juce_Entitlements.cpp b/extras/Build/juce_build_tools/utils/juce_Entitlements.cpp
index c41b4db0b2..cc7840f70f 100644
--- a/extras/Build/juce_build_tools/utils/juce_Entitlements.cpp
+++ b/extras/Build/juce_build_tools/utils/juce_Entitlements.cpp
@@ -49,6 +49,9 @@ namespace build_tools
 
         if (isiOS)
         {
+            // The Inter-App Audio entitlement is currently deprecated, but it
+            // also "provides access to Audio Unit extensions". Without the
+            // entitlement iOS apps are unable to access AUv3 plug-ins.
             if ((isAudioPluginProject && shouldEnableIAA) || isAUPluginHost)
                 entitlements.set ("inter-app-audio", "<true/>");