diff --git a/openmpt123/openmpt123.cpp b/openmpt123/openmpt123.cpp
index 13af102b3a1..91c145a150e 100644
--- a/openmpt123/openmpt123.cpp
+++ b/openmpt123/openmpt123.cpp
@@ -227,7 +227,7 @@ class realtime_audio_stream_raii : public write_buffers_interface {
 #endif
 #if MPT_OS_WINDOWS && !MPT_OS_WINDOWS_WINRT
 		} else if ( flags.driver == MPT_USTRING("waveout") || flags.driver.empty() ) {
-			impl = std::make_unique<waveout_stream_raii>( flags );
+			impl = std::make_unique<waveout_stream_raii>( flags, log );
 #endif
 #if defined( MPT_WITH_ALLEGRO42 )
 		} else if ( flags.driver == MPT_USTRING("allegro42") || flags.driver.empty() ) {
diff --git a/openmpt123/openmpt123_waveout.hpp b/openmpt123/openmpt123_waveout.hpp
index 74894e0059a..205287e2ac9 100644
--- a/openmpt123/openmpt123_waveout.hpp
+++ b/openmpt123/openmpt123_waveout.hpp
@@ -34,7 +34,7 @@ class waveout_stream_raii : public write_buffers_interface {
 	std::vector<std::vector<char> > wavebuffers;
 	std::deque<char> byte_queue;
 public:
-	waveout_stream_raii( commandlineflags & flags )
+	waveout_stream_raii( commandlineflags & flags, concat_stream<mpt::ustring> & /* log */ )
 		: waveout(NULL)
 		, num_channels(0)
 		, num_chunks(0)