diff --git a/src/decoder/plugins/WildmidiDecoderPlugin.cxx b/src/decoder/plugins/WildmidiDecoderPlugin.cxx
index a1dbee4f2..7613344c4 100644
--- a/src/decoder/plugins/WildmidiDecoderPlugin.cxx
+++ b/src/decoder/plugins/WildmidiDecoderPlugin.cxx
@@ -20,7 +20,6 @@
 #include "WildmidiDecoderPlugin.hxx"
 #include "../DecoderAPI.hxx"
 #include "tag/Handler.hxx"
-#include "util/Domain.hxx"
 #include "util/ScopeExit.hxx"
 #include "util/StringFormat.hxx"
 #include "fs/AllocatedPath.hxx"
@@ -33,8 +32,6 @@ extern "C" {
 #include <wildmidi_lib.h>
 }
 
-static constexpr Domain wildmidi_domain("wildmidi");
-
 static constexpr AudioFormat wildmidi_audio_format{48000, SampleFormat::S16, 2};
 
 static bool