diff --git a/src/decoder/Thread.cxx b/src/decoder/Thread.cxx
index 5a7aca103..7571ff974 100644
--- a/src/decoder/Thread.cxx
+++ b/src/decoder/Thread.cxx
@@ -488,7 +488,7 @@ decoder_run_song(DecoderControl &dc,
  * Caller holds DecoderControl::mutex.
  */
 static void
-decoder_run(DecoderControl &dc)
+decoder_run(DecoderControl &dc) noexcept
 try {
 	dc.ClearError();