Fix build on some compilers.

1 files changed, 1 insertions, 1 deletions

diff --git a/src/lib/analyse_audio_job.cc b/src/lib/analyse_audio_job.cc
index 92c3cdd4e..43eecbcbd 100644
--- a/src/lib/analyse_audio_job.cc
+++ b/src/lib/analyse_audio_job.cc
@@ -68,7 +68,7 @@ AnalyseAudioJob::run ()
 	decoders.audio->Audio.connect (bind (&AnalyseAudioJob::audio, this, _1));
 
 	int64_t total_audio_frames = video_frames_to_audio_frames (_film->length().get(), _film->audio_stream()->sample_rate(), _film->source_frame_rate());
-	_samples_per_point = max (1L, total_audio_frames / _num_points);
+	_samples_per_point = max (int64_t (1), total_audio_frames / _num_points);
 
 	_current.resize (_film->audio_stream()->channels ());
 	_analysis.reset (new AudioAnalysis (_film->audio_stream()->channels()));