diff --git a/modules/juce_audio_plugin_client/utility/juce_IncludeModuleHeaders.h b/modules/juce_audio_plugin_client/utility/juce_IncludeModuleHeaders.h
index 701c4df..0e8a324 100644
--- a/modules/juce_audio_plugin_client/utility/juce_IncludeModuleHeaders.h
+++ b/modules/juce_audio_plugin_client/utility/juce_IncludeModuleHeaders.h
@@ -24,6 +24,8 @@
   ==============================================================================
 */
 
+#pragma once
+
 #include "../juce_audio_plugin_client.h"
 
 namespace juce
