diff --git a/modules/juce_audio_processors/format_types/juce_AudioUnitPluginFormat.mm b/modules/juce_audio_processors/format_types/juce_AudioUnitPluginFormat.mm
index 45acefa5d8..a94e782853 100644
--- a/modules/juce_audio_processors/format_types/juce_AudioUnitPluginFormat.mm
+++ b/modules/juce_audio_processors/format_types/juce_AudioUnitPluginFormat.mm
@@ -2012,6 +2012,8 @@ StringArray AudioUnitPluginFormat::searchPathsForPlugins (const FileSearchPath&,
              || desc.componentType == kAudioUnitType_Generator
              || desc.componentType == kAudioUnitType_Panner)
         {
+            ignoreUnused (allowPluginsWhichRequireAsynchronousInstantiation);
+
           #if JUCE_SUPPORTS_AUv3
             bool isAUv3 = ((desc.componentFlags & kAudioComponentFlag_IsV3AudioUnit) != 0);