diff --git a/test/run_decoder.cxx b/test/run_decoder.cxx
index cdfa852b4..b33c75b3c 100644
--- a/test/run_decoder.cxx
+++ b/test/run_decoder.cxx
@@ -148,8 +148,6 @@ public:
 	}
 
 	DecoderCommand GetCommand() noexcept override {
-		assert(IsInitialized());
-
 		if (seek_where != SongTime{}) {
 			if (!seekable)
 				return DecoderCommand::STOP;