diff --git a/modules/juce_audio_plugin_client/juce_audio_plugin_client_AU_2.mm b/modules/juce_audio_plugin_client/juce_audio_plugin_client_AU_2.mm
index 2edb687f11..8250ac795e 100644
--- a/modules/juce_audio_plugin_client/juce_audio_plugin_client_AU_2.mm
+++ b/modules/juce_audio_plugin_client/juce_audio_plugin_client_AU_2.mm
@@ -24,6 +24,8 @@
   ==============================================================================
 */
 
+#if JucePlugin_Build_AU
+
 #ifdef __clang__
  #pragma clang diagnostic push
  #pragma clang diagnostic ignored "-Wparentheses"
@@ -81,3 +83,5 @@
 #ifdef __clang__
  #pragma clang diagnostic pop
 #endif
+
+#endif