diff --git a/modules/juce_audio_processors/utilities/juce_AudioProcessorValueTreeState.cpp b/modules/juce_audio_processors/utilities/juce_AudioProcessorValueTreeState.cpp
index b0d8bdd4d5..2d4bfac237 100644
--- a/modules/juce_audio_processors/utilities/juce_AudioProcessorValueTreeState.cpp
+++ b/modules/juce_audio_processors/utilities/juce_AudioProcessorValueTreeState.cpp
@@ -696,10 +696,10 @@ public:
         beginTest ("After construction, the value tree has the expected format");
         {
             TestAudioProcessor proc ({
-                std::make_unique<AudioProcessorParameterGroup> ("", "", "",
+                std::make_unique<AudioProcessorParameterGroup> ("A", "", "",
                     std::make_unique<AudioParameterBool> ("a", "", false),
                     std::make_unique<AudioParameterFloat> ("b", "", NormalisableRange<float>{}, 0.0f)),
-                std::make_unique<AudioProcessorParameterGroup> ("", "", "",
+                std::make_unique<AudioProcessorParameterGroup> ("B", "", "",
                     std::make_unique<AudioParameterInt> ("c", "", 0, 1, 0),
                     std::make_unique<AudioParameterChoice> ("d", "", StringArray { "foo", "bar" }, 0)) });