diff --git a/modules/juce_audio_plugin_client/Standalone/juce_StandaloneFilterWindow.h b/modules/juce_audio_plugin_client/Standalone/juce_StandaloneFilterWindow.h
index 7a884d11c5..0081012502 100644
--- a/modules/juce_audio_plugin_client/Standalone/juce_StandaloneFilterWindow.h
+++ b/modules/juce_audio_plugin_client/Standalone/juce_StandaloneFilterWindow.h
@@ -53,7 +53,7 @@ public:
         startPlaying();
     }
 
-    ~StandalonePluginHolder()
+    virtual ~StandalonePluginHolder()
     {
         deletePlugin();
         shutDownAudioDevices();